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A [[state of matter]] in which the [[Particle|particles]] are separated by large distances and can move freely.
+
==Key Stage 2==
 +
===Meaning===
 +
'''Gas''' is a [[State of Matter|state of matter]] that can change size and shape to fit any container.
 +
 
 +
===About Gases===
 +
: Most '''gases''' are invisible but we can feel them.
 +
: When the [[air]] moves we call it the wind.
 +
{| class="wikitable"
 +
|+ Gases are a '''state of matter''' that:
 +
|-
 +
|[[File:GasPour.png|center|600px]]
 +
|-
 +
| style="height:20px; width:600px; text-align:left;" |
 +
*Cannot hold their shape.
 +
*Fit the shape of their container.
 +
*Can be poured and will flow.
 +
|}
 +
 
 +
{| class="wikitable"
 +
|-
 +
|[[File:GasSquash.png|center|500px]]
 +
|-
 +
| style="height:20px; width:500px; text-align:left;" |'''Gases''' can be squashed into a smaller size.
 +
|}
 +
 
 +
Examples of gas [[Material|materials]]:
 +
*Air (A mixture of gases, mostly nitrogen and oxygen)
 +
*Steam
 +
 
 +
==Key Stage 3==
 +
===Meaning===
 +
[[File:ParticleModelGas.png|right|300px|thumb|The [[Particle Model]] of a [[gas]].]]
 +
[[Gas]] is a [[State of Matter]] in which the [[Particle|particles]] are separated by large distances and can move freely.
 +
 
 +
===About Gases===
 +
{| class="wikitable"
 +
|-
 +
|[[File:ParticleModelGasPour.png|center|600px]]
 +
|-
 +
| style="height:20px; width:600px; text-align:left;" |
 +
*[[Gas]]es cannot hold their shape because the particles are free to move.
 +
*[[Gas]]es fit the shape of their containers because the particles are free to move.
 +
*A [[gas]] can be poured and will flow because the particles are free to move.
 +
|}
 +
 
 +
{| class="wikitable"
 +
|-
 +
|[[File:ParticleModelGasSquash.png|center|500px]]
 +
|-
 +
| style="height:20px; width:500px; text-align:left;" |'''Gas''' can be squashed into a smaller size because the [[particle]]s are spread apart.
 +
|}
 +
 
 +
==Key Stage 4 Foundation==
 +
===Meaning===
 +
[[Gas]] is a [[State of Matter]] in which the [[Particle|particles]] are separated by large distances and can move freely.
 +
 
 +
===About Gases===
 +
: When a [[substance]] is in its [[gas]]eous [[State of Matter|state]] it is always less [[Density|dense]] than in its [[liquid]] or [[solid]] [[State of Matter|state]] due to the [[particle]]s in a [[gas]] being spread far apart from each other.
 +
: A [[substance]] which is [[gas]]eous at [[Room Temperature|room temperature]] has a smaller [[force]] of [[attraction]] between [[particle]]s than a [[substance]] which is [[liquid]] or [[solid]] at [[Room Temperature|room temperature]].
 +
 
 +
{| class="wikitable"
 +
|+Gases
 +
|-
 +
| style="height:20px; width:200px; text-align:center;" |'''Particle Diagram'''
 +
| style="height:20px; width:200px; text-align:center;" |'''Particle Arrangement'''
 +
| style="height:20px; width:200px; text-align:center;" |'''Property'''
 +
|-
 +
|rowspan="6"|[[File:ParticleModelGas.png|center|200px]]
 +
|rowspan="3"|[[Particle]]s are free to move in all directions.
 +
| style="height:20px; width:200px; text-align:center;" |[[Gas]]es fit the size of their container.
 +
|-
 +
| style="height:20px; width:200px; text-align:center;" |[[Gas]]es fit the shape of their container.
 +
|-
 +
| style="height:20px; width:200px; text-align:center;" |[[Convection]] happens most easily in [[gas]]es.
 +
|-
 +
|rowspan="3"|[[Particle]]s are spread apart.
 +
| style="height:20px; width:200px; text-align:center;" |[[Gas]]es can be [[compressed]] into a smaller [[Volume (Space)|volume]].
 +
|-
 +
| style="height:20px; width:200px; text-align:center;" |[[Sound]] passes through [[gas]]es slower than [[liquid]]s and [[solid]]s.
 +
|-
 +
| style="height:20px; width:200px; text-align:center;" |[[Thermal Conduction]] is very poor in a [[gas]]es.
 +
|}
 +
 
 +
==Key Stage 4 Higher==
 +
===Molar Gas Volume===
 +
: At [[Standard Temperature and Pressure]] (20°C and 101,000Pa) the [[Volume (Space)|volume]] of one [[mole]] of [[gas]] is 24 dm<sup>3</sup>.
 +
: The [[Volume (Space)|volume]] of [[gas]] required or [[product|produced]] in a [[Chemical Reaction|chemical reaction]] can be calculated from the [[mass]] of the [[gas]] and its [[Relative Formula Mass]].
 +
====Example Calculations====
 +
{| class="wikitable"
 +
|+ Finding the Volume of Gas
 +
|-
 +
| style="height:20px; width:250px; text-align:center;" |'''Calculate the [[Volume (Space)|volume]] of 4g of [[Hydrogen]] [[gas]].'''
 +
| style="height:20px; width:250px; text-align:center;" |'''Calculate the [[Volume (Space)|volume]] of 8g of [[Oxygen]] [[gas]].'''
 +
| style="height:20px; width:250px; text-align:center;" |'''Calculate the [[Volume (Space)|volume]] of 20g of [[Methane]] [[gas]].'''
 +
|-
 +
| style="height:20px; width:250px; text-align:center;" |1.'''Find the [[Relative Formula Mass]] of the [[gas]].'''
 +
 
 +
[[Chemical Formula]] of [[Hydrogen]] = H<sub>2</sub>
 +
 
 +
[[Relative Atomic Mass]] of [[Hydrogen]] = 1g
 +
 
 +
[[Relative Formula Mass]] of H<sub>2</sub> = 2g
 +
 
 +
| style="height:20px; width:250px; text-align:center;" |1.'''Find the [[Relative Formula Mass]] of the [[gas]].'''
 +
 
 +
[[Chemical Formula]] of [[Oxygen]] = O<sub>2</sub>
 +
 
 +
[[Relative Atomic Mass]] of [[Oxygen]] = 16g
 +
 
 +
[[Relative Formula Mass]] of O<sub>2</sub> = 32g
 +
| style="height:20px; width:250px; text-align:center;" |1.'''Find the [[Relative Formula Mass]] of the [[gas]].'''
 +
 
 +
[[Chemical Formula]] of [[Methane]] = CH<sub>4</sub>
 +
 
 +
[[Relative Atomic Mass]] of [[Hydrogen]] = 1g
 +
 
 +
 
 +
[[Relative Atomic Mass]] of [[Carbon]] = 12g
 +
 
 +
[[Relative Formula Mass]] of CH<sub>4</sub> = 16g
 +
|-
 +
| style="height:20px; width:250px; text-align:center;" |'''2. Calculate the number of [[mole]]s of [[gas]].'''
 +
 
 +
1 [[mole]] = 2g
 +
 
 +
No. [[Mole]]s = <math>\frac{Mass}{M_r}</math>
 +
 
 +
No. [[Mole]]s = <math>\frac{4}{2}</math>
 +
 
 +
No. [[Mole]]s = 2mol
 +
| style="height:20px; width:250px; text-align:center;" |'''2. Calculate the number of [[mole]]s of [[gas]].'''
 +
 
 +
1 [[mole]] = 32g
 +
 
 +
No. [[Mole]]s = <math>\frac{Mass}{M_r}</math>
 +
 
 +
No. [[Mole]]s = <math>\frac{8}{32}</math>
 +
 
 +
No. [[Mole]]s = 0.25 mol
 +
| style="height:20px; width:250px; text-align:center;" |'''2. Calculate the number of [[mole]]s of [[gas]].'''
 +
 
 +
1 [[mole]] = 16g
 +
 
 +
No. [[Mole]]s = <math>\frac{Mass}{M_r}</math>
 +
 
 +
No. [[Mole]]s = <math>\frac{20}{16}</math>
 +
 
 +
No. [[Mole]]s = 1.25 mol
 +
|-
 +
| style="height:20px; width:250px; text-align:center;" |'''3. Find the [[Volume (Space)|volume]] in dm<sup>3</sup>.'''
 +
 
 +
[[Volume (Space)|Volume]] = 24 x (number of moles)
 +
 
 +
[[Volume (Space)|Volume]] = 24 x (2)
 +
 
 +
[[Volume (Space)|Volume]] = 48dm<sup>3</sup>
 +
| style="height:20px; width:250px; text-align:center;" |'''3. Find the [[Volume (Space)|volume]] in dm<sup>3</sup>.'''
 +
 
 +
[[Volume (Space)|Volume]] = 24 x (number of moles)
 +
 
 +
[[Volume (Space)|Volume]] = 24 x (0.25)
 +
 
 +
[[Volume (Space)|Volume]] = 6dm<sup>3</sup>
 +
| style="height:20px; width:250px; text-align:center;" |'''3. Find the [[Volume (Space)|volume]] in dm<sup>3</sup>.'''
 +
 
 +
[[Volume (Space)|Volume]] = 24 x (number of moles)
 +
 
 +
[[Volume (Space)|Volume]] = 24 x (1.25)
 +
 
 +
[[Volume (Space)|Volume]] = 30dm<sup>3</sup>
 +
|}
 +
 
 +
{| class="wikitable"
 +
|+ Finding the Mass of Gas from the Volume
 +
|-
 +
| style="height:20px; width:250px; text-align:center;" |'''Calculate the [[mass]] of 12dm<sup>3</sup> of [[Hydrogen]] [[gas]].'''
 +
| style="height:20px; width:250px; text-align:center;" |'''Calculate the [[mass]] of 36dm<sup>3</sup> of [[Nitrogen]] [[gas]].'''
 +
| style="height:20px; width:250px; text-align:center;" |'''Calculate the [[mass]] of 18dm<sup>3</sup> of [[Ethane]] [[gas]].'''
 +
|-
 +
| style="height:20px; width:250px; text-align:center;" |1.'''Find the [[Relative Formula Mass]] of the [[gas]].'''
 +
 
 +
[[Chemical Formula]] of [[Hydrogen]] = H<sub>2</sub>
 +
 
 +
[[Relative Atomic Mass]] of [[Hydrogen]] = 1g
 +
 
 +
[[Relative Formula Mass]] of H<sub>2</sub> = 2g
 +
 
 +
| style="height:20px; width:250px; text-align:center;" |1.'''Find the [[Relative Formula Mass]] of the [[gas]].'''
 +
 
 +
[[Chemical Formula]] of [[Nitrogen]] = N<sub>2</sub>
 +
 
 +
[[Relative Atomic Mass]] of [[Nitrogen]] = 14g
 +
 
 +
[[Relative Formula Mass]] of N<sub>2</sub> = 28g
 +
| style="height:20px; width:250px; text-align:center;" |1.'''Find the [[Relative Formula Mass]] of the [[gas]].'''
 +
 
 +
[[Chemical Formula]] of [[Ethane]] = C<sub>2</sub>H<sub>6</sub>
 +
 
 +
[[Relative Atomic Mass]] of [[Hydrogen]] = 1g
 +
 
 +
[[Relative Atomic Mass]] of [[Carbon]] = 12g
 +
 
 +
[[Relative Formula Mass]] of C<sub>2</sub>H<sub>6</sub> = 30g
 +
|-
 +
| style="height:20px; width:250px; text-align:center;" |'''2. Calculate the number of [[mole]]s of [[gas]].'''
 +
 
 +
[[Volume (Space)|Volume]] = 24 x (number of moles)
 +
 
 +
12 = 24 x (number of moles)
 +
 
 +
Number of moles = 12/24
 +
 
 +
Number of moles = 0.5
 +
| style="height:20px; width:250px; text-align:center;" |'''2. Calculate the number of [[mole]]s of [[gas]].'''
 +
 
 +
[[Volume (Space)|Volume]] = 24 x (number of moles)
 +
 
 +
36 = 24 x (number of moles)
 +
 
 +
Number of moles = 36/24
 +
 
 +
Number of moles = 1.5
 +
| style="height:20px; width:250px; text-align:center;" |'''2. Calculate the number of [[mole]]s of [[gas]].'''
 +
 
 +
[[Volume (Space)|Volume]] = 24 x (number of moles)
 +
 
 +
12 = 24 x (number of moles)
 +
 
 +
Number of moles = 18/24
 +
 
 +
Number of moles = 0.75
 +
|-
 +
| style="height:20px; width:250px; text-align:center;" |'''3. Find the [[mass]] of [[gas]] from the number of [[mole]]s.'''
 +
 
 +
No. [[Mole]]s = <math>\frac{Mass}{M_r}</math>
 +
 
 +
0.5 = <math>\frac{Mass}{2}</math>
 +
 
 +
Mass = <math>0.5\times2</math>
 +
 
 +
Mass = 1g
 +
[[Volume (Space)|Volume]] = 48dm<sup>3</sup>
 +
| style="height:20px; width:250px; text-align:center;" |'''3. Find the [[mass]] of [[gas]] from the number of [[mole]]s.'''
 +
 
 +
No. [[Mole]]s = <math>\frac{Mass}{M_r}</math>
 +
 
 +
1.5 = <math>\frac{Mass}{28}</math>
 +
 
 +
Mass = <math>1.5\times28</math>
 +
 
 +
Mass = 42g
 +
| style="height:20px; width:250px; text-align:center;" |'''3. Find the [[mass]] of [[gas]] from the number of [[mole]]s.'''
 +
 
 +
No. [[Mole]]s = <math>\frac{Mass}{M_r}</math>
 +
 
 +
0.75 = <math>\frac{Mass}{30}</math>
 +
 
 +
Mass = <math>0.75\times30</math>
 +
 
 +
Mass = 22.5g
 +
|}
 +
 
 +
===References===
 +
====AQA====
 +
 
 +
:[https://www.amazon.co.uk/gp/product/0008158770/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158770&linkCode=as2&tag=nrjc-21&linkId=ec31595e720e1529e49876c3866fff6e ''Gas, pages 13, 34-5, 82-5, 96-101, GCSE Physics; Student Book, Collins, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/0008158770/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158770&linkCode=as2&tag=nrjc-21&linkId=ec31595e720e1529e49876c3866fff6e ''Gas; pressure, pages 82-5, 96-9, 257, GCSE Physics; Student Book, Collins, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/0008158770/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158770&linkCode=as2&tag=nrjc-21&linkId=ec31595e720e1529e49876c3866fff6e ''Gas; volume, page 98, GCSE Physics; Student Book, Collins, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/1782945571/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945571&linkCode=as2&tag=nrjc-21&linkId=9e29fad914244909903e5e93f8a01d137 ''Gases pages 36, 37, 46, 107, GCSE Chemistry; The Revision Guide, CGP, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/1782945970/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945970&linkCode=as2&tag=nrjc-21&linkId=a120d24dcc7cc7a58192069a3aafc1d2 ''Gases, page 107, GCSE Physics; The Complete 9-1 Course for AQA, CGP, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/1471851370/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851370&linkCode=as2&tag=nrjc-21&linkId=01c69b0ae058f809cf636033e6ba793e ''Gases, page 71, GCSE Physics, Hodder, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/1782945571/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945571&linkCode=as2&tag=nrjc-21&linkId=9e29fad914244909903e5e93f8a01d254 ''Gases, page 88, GCSE Chemistry; The Revision Guide, CGP, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/1782946403/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782946403&linkCode=as2&tag=nrjc-21&linkId=32a0abb60dff015b15b50e9b1d7b4644 ''Gases, page 97, GCSE Combined Science Trilogy; Physics, CGP, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/1782945962/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945962&linkCode=as2&tag=nrjc-21&linkId=476bb5c8d1dfb5c08ac81b6d4d1c98d8 ''Gases, pages 100, 101, 124, GCSE Chemistry, CGP, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/1471851354/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851354&linkCode=as2&tag=nrjc-21&linkId=9012a0d354024419214fb3ad5ac44ba0 ''Gases, pages 164-5, 323, GCSE Combined Science Trilogy 1, Hodder, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/0198359381/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359381&linkCode=as2&tag=nrjc-21&linkId=47c8d1ae58d8b3a5e2094cd447154558 ''Gases, pages 6, 36-37, GCSE Chemistry; Third Edition, Oxford University Press, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/019835939X/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=019835939X&linkCode=as2&tag=nrjc-21&linkId=57e96876985fc39b1a3d8a3e3dc238b6 ''Gases, pages 78-79, 83, 86-89, GCSE Physics; Third Edition, Oxford University Press, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/178294639X/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=178294639X&linkCode=as2&tag=nrjc-21&linkId=51599bb45a2bfaf7c1b6a978b2ca2616 ''Gases, pages 98, 99, GCSE Combined Science Trilogy; Chemistry, CGP, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/0198359381/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359381&linkCode=as2&tag=nrjc-21&linkId=47c8d1ae58d8b3a5e2094cd447154558 ''Gases; analysis, pages 184-185, GCSE Chemistry; Third Edition, Oxford University Press, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/0198359381/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359381&linkCode=as2&tag=nrjc-21&linkId=47c8d1ae58d8b3a5e2094cd447154558 ''Gases; atmosphere, pages 194-205, GCSE Chemistry; Third Edition, Oxford University Press, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/1471851354/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851354&linkCode=as2&tag=nrjc-21&linkId=9012a0d354024419214fb3ad5ac44ba0 ''Gases; density of, page 323, GCSE Combined Science Trilogy 1, Hodder, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/1782945598/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945598&linkCode=as2&tag=nrjc-21&linkId=ad276ad49df77ab4b40ab4fd0fe09923 ''Gases; gas pressure, page 193, GCSE Combined Science; The Revision Guide, CGP, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/178294558X/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=178294558X&linkCode=as2&tag=nrjc-21&linkId=f0dfb66dafcb0c6e9449e7b1a4ae1ac211 ''Gases; gas pressure, page 41, GCSE Physics; The Revision Guide, CGP, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/1782945598/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945598&linkCode=as2&tag=nrjc-21&linkId=ad276ad49df77ab4b40ab4fd0fe09924 ''Gases; gas syringes, pages 140, 232, GCSE Combined Science; The Revision Guide, CGP, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/0198359381/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359381&linkCode=as2&tag=nrjc-21&linkId=47c8d1ae58d8b3a5e2094cd447154558 ''Gases; greenhouse effect, pages 198-202, GCSE Chemistry; Third Edition, Oxford University Press, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/1471851362/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851362&linkCode=as2&tag=nrjc-21&linkId=7d78d70a2044ee9982dae010c94af92a ''Gases; Greenhouse gases, pages 170-3, GCSE Combined Science Trilogy 2, Hodder, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/1471851346/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851346&linkCode=as2&tag=nrjc-21&linkId=3ac654f4b0da781c49c855a1af4c92ea ''Gases; identification of, page 207, GCSE Chemistry, Hodder, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/1471851362/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851362&linkCode=as2&tag=nrjc-21&linkId=7d78d70a2044ee9982dae010c94af92a ''Gases; Identification of, pages 160, GCSE Combined Science Trilogy 2, Hodder, AQA  '']
 +
:[https://www.amazon.co.uk/gp/product/1471851362/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851362&linkCode=as2&tag=nrjc-21&linkId=7d78d70a2044ee9982dae010c94af92a ''Gases; In the atmosphere, pages 167, GCSE Combined Science Trilogy 2, Hodder, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/1782945598/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945598&linkCode=as2&tag=nrjc-21&linkId=ad276ad49df77ab4b40ab4fd0fe09925 ''Gases; measuring volumes, pages 140, 232, 237, GCSE Combined Science; The Revision Guide, CGP, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/1782945598/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945598&linkCode=as2&tag=nrjc-21&linkId=ad276ad49df77ab4b40ab4fd0fe09926 ''Gases; natural gas, page 178, GCSE Combined Science; The Revision Guide, CGP, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/178294558X/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=178294558X&linkCode=as2&tag=nrjc-21&linkId=f0dfb66dafcb0c6e9449e7b1a4ae1ac212 ''Gases; natural gas, pages 18, 21, GCSE Physics; The Revision Guide, CGP, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/1782946403/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782946403&linkCode=as2&tag=nrjc-21&linkId=32a0abb60dff015b15b50e9b1d7b4644 ''Gases; natural gas, pages 45, 46 54, 56, GCSE Combined Science Trilogy; Physics, CGP, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/1782945970/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945970&linkCode=as2&tag=nrjc-21&linkId=a120d24dcc7cc7a58192069a3aafc1d2 ''Gases; natural gas, pages 47, 48, 56, 58, GCSE Physics; The Complete 9-1 Course for AQA, CGP, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/1471851354/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851354&linkCode=as2&tag=nrjc-21&linkId=9012a0d354024419214fb3ad5ac44ba0 ''Gases; particle model of, pages 330-1, GCSE Combined Science Trilogy 1, Hodder, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/1471851370/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851370&linkCode=as2&tag=nrjc-21&linkId=01c69b0ae058f809cf636033e6ba793e ''Gases; particle model of, pages 78-80, 85-6, GCSE Physics, Hodder, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/1782946403/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782946403&linkCode=as2&tag=nrjc-21&linkId=32a0abb60dff015b15b50e9b1d7b4644 ''Gases; particle motion, page 104, GCSE Combined Science Trilogy; Physics, CGP, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/1782945598/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945598&linkCode=as2&tag=nrjc-21&linkId=ad276ad49df77ab4b40ab4fd0fe09927 ''Gases; particle motion, page 193, GCSE Combined Science; The Revision Guide, CGP, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/1782945970/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945970&linkCode=as2&tag=nrjc-21&linkId=a120d24dcc7cc7a58192069a3aafc1d2 ''Gases; particle motion, pages 114, 115, GCSE Physics; The Complete 9-1 Course for AQA, CGP, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/178294558X/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=178294558X&linkCode=as2&tag=nrjc-21&linkId=f0dfb66dafcb0c6e9449e7b1a4ae1ac213 ''Gases; particle motion, pages 38, 41, GCSE Physics; The Revision Guide, CGP, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/1782946403/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782946403&linkCode=as2&tag=nrjc-21&linkId=32a0abb60dff015b15b50e9b1d7b4644 ''Gases; pressure, page 104, GCSE Combined Science Trilogy; Physics, CGP, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/0198359381/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359381&linkCode=as2&tag=nrjc-21&linkId=47c8d1ae58d8b3a5e2094cd447154558 ''Gases; pressure, page 36, GCSE Chemistry; Third Edition, Oxford University Press, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/1782945970/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945970&linkCode=as2&tag=nrjc-21&linkId=a120d24dcc7cc7a58192069a3aafc1d2 ''Gases; pressure, pages 114, 115, 169, 171, GCSE Physics; The Complete 9-1 Course for AQA, CGP, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/1782945970/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945970&linkCode=as2&tag=nrjc-21&linkId=a120d24dcc7cc7a58192069a3aafc1d2 ''Gases; states of matter, pages 106, 107, 110-112, GCSE Physics; The Complete 9-1 Course for AQA, CGP, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/1782945598/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945598&linkCode=as2&tag=nrjc-21&linkId=ad276ad49df77ab4b40ab4fd0fe09928 ''Gases; states of matter, pages 121, 122, 193, 195, GCSE Combined Science; The Revision Guide, CGP, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/178294558X/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=178294558X&linkCode=as2&tag=nrjc-21&linkId=f0dfb66dafcb0c6e9449e7b1a4ae1ac214 ''Gases; states of matter, pages 38-40, GCSE Physics; The Revision Guide, CGP, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/1782946403/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782946403&linkCode=as2&tag=nrjc-21&linkId=32a0abb60dff015b15b50e9b1d7b4644 ''Gases; states of matter, pages 96, 97, 100-102, GCSE Combined Science Trilogy; Physics, CGP, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/1782945598/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945598&linkCode=as2&tag=nrjc-21&linkId=ad276ad49df77ab4b40ab4fd0fe09929 ''Gases; tests for, page 153, GCSE Combined Science; The Revision Guide, CGP, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/1471851362/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851362&linkCode=as2&tag=nrjc-21&linkId=7d78d70a2044ee9982dae010c94af92a ''Gases; Volume and mass measurement, pages 120, GCSE Combined Science Trilogy 2, Hodder, AQA  '']
 +
:[https://www.amazon.co.uk/gp/product/0198359381/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359381&linkCode=as2&tag=nrjc-21&linkId=47c8d1ae58d8b3a5e2094cd447154558 ''Gases; volume, pages 78-79, 129, GCSE Chemistry; Third Edition, Oxford University Press, AQA '']
 +
 
 +
====Edexcel====
 +
 
 +
:[https://www.amazon.co.uk/gp/product/1292120215/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120215&linkCode=as2&tag=nrjc-21&linkId=8f96ddb76196848bafdb124354e4cf77 ''Gases, molar volumes of, pages 118-119, GCSE Chemistry, Pearson, Edexcel '']
 +
:[https://www.amazon.co.uk/gp/product/1782948163/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782948163&linkCode=as2&tag=nrjc-21&linkId=0fdbfd5dd397d6e24a9dfb250f08587f ''Gases, page 300, GCSE Physics, CGP, Edexcel '']
 +
:[https://www.amazon.co.uk/gp/product/1782945725/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945725&linkCode=as2&tag=nrjc-21&linkId=694be7494de75af3349537d34e13f7f0 ''Gases, pages 34, 35, GCSE Chemistry; The Revision Guide, CGP, Edexcel '']
 +
:[https://www.amazon.co.uk/gp/product/1782948147/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782948147&linkCode=as2&tag=nrjc-21&linkId=f63dcd8345f4e49c717b39a228a36c7c ''Gases, pages 96, 98, GCSE Chemistry, CGP, Edexcel  '']
 +
:[https://www.amazon.co.uk/gp/product/1782945741/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945741&linkCode=as2&tag=nrjc-21&linkId=30da4f2178da182547b62a7329d13b57 ''Gases, pages 97, 98, GCSE Combined Science; The Revision Guide, CGP, Edexcel '']
 +
:[https://www.amazon.co.uk/gp/product/1782948163/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782948163&linkCode=as2&tag=nrjc-21&linkId=0fdbfd5dd397d6e24a9dfb250f08587f ''Gases; doing work, page 312, GCSE Physics, CGP, Edexcel '']
 +
:[https://www.amazon.co.uk/gp/product/1292120193/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120193&linkCode=as2&tag=nrjc-21&linkId=572df39392fb4200db8391d98ae6314e ''Gases; pressure, page 424, GCSE Combined Science, Pearson Edexcel '']
 +
:[https://www.amazon.co.uk/gp/product/1292120223/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120223&linkCode=as2&tag=nrjc-21&linkId=068ecf40278c32406a7f1c6e66751417 ''Gases; pressure, pages 192, 194-195, GCSE Physics, Pearson Edexcel '']
 +
:[https://www.amazon.co.uk/gp/product/1782948163/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782948163&linkCode=as2&tag=nrjc-21&linkId=0fdbfd5dd397d6e24a9dfb250f08587f ''Gases; pressure, pages 310-312, 319, GCSE Physics, CGP, Edexcel '']
 +
:[https://www.amazon.co.uk/gp/product/1292120223/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120223&linkCode=as2&tag=nrjc-21&linkId=068ecf40278c32406a7f1c6e66751417 ''Gases; temperature, page 192, GCSE Physics, Pearson Edexcel '']
 +
:[https://www.amazon.co.uk/gp/product/1292120193/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120193&linkCode=as2&tag=nrjc-21&linkId=572df39392fb4200db8391d98ae6314e ''Gases; temperature, page 424, GCSE Combined Science, Pearson Edexcel '']
 +
:[https://www.amazon.co.uk/gp/product/1292120223/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120223&linkCode=as2&tag=nrjc-21&linkId=068ecf40278c32406a7f1c6e66751417 ''Gases; volume, pages 194-195, GCSE Physics, Pearson Edexcel '']
 +
 
 +
====OCR====
 +
:[https://www.amazon.co.uk/gp/product/1782945679/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945679&linkCode=as2&tag=nrjc-21&linkId=a2db42f7b4bdf10cafaafa3bb9120940 ''Gases, page 12, Gateway GCSE Chemistry; The Revision Guide, CGP, OCR '']
 +
:[https://www.amazon.co.uk/gp/product/0198359829/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359829&linkCode=as2&tag=nrjc-21&linkId=90e8d7b4f039d53035238fa0320fe00b ''Gases, page 18, Gateway GCSE Chemistry, Oxford, OCR  '']
 +
:[https://www.amazon.co.uk/gp/product/1782945687/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945687&linkCode=as2&tag=nrjc-21&linkId=9a598e52189317a20311d7a632747bc9 ''Gases, pages 14, 17, 18, Gateway GCSE Physics; The Revision Guide, CGP, OCR  '']
 +
:[https://www.amazon.co.uk/gp/product/1782945695/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945695&linkCode=as2&tag=nrjc-21&linkId=ceafcc80bcad6b6754ee97a0c7ceea53 ''Gases, pages 82, 152, 155, Gateway GCSE Combined Science; The Revision Guide, CGP, OCR '']
 +
:[https://www.amazon.co.uk/gp/product/0198359829/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359829&linkCode=as2&tag=nrjc-21&linkId=90e8d7b4f039d53035238fa0320fe00b ''Gases; atmosphere, pages 252-257, Gateway GCSE Chemistry, Oxford, OCR  '']
 +
:[https://www.amazon.co.uk/gp/product/0198359829/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359829&linkCode=as2&tag=nrjc-21&linkId=90e8d7b4f039d53035238fa0320fe00b ''Gases; calculating amounts, pages 170-171, Gateway GCSE Chemistry, Oxford, OCR  '']
 +
:[https://www.amazon.co.uk/gp/product/0198359829/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359829&linkCode=as2&tag=nrjc-21&linkId=90e8d7b4f039d53035238fa0320fe00b ''Gases; changing state, pages 76-77, Gateway GCSE Chemistry, Oxford, OCR  '']
 +
:[https://www.amazon.co.uk/gp/product/1782945695/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945695&linkCode=as2&tag=nrjc-21&linkId=ceafcc80bcad6b6754ee97a0c7ceea53 ''Gases; collecting, pages 128, 222, Gateway GCSE Combined Science; The Revision Guide, CGP, OCR '']
 +
:[https://www.amazon.co.uk/gp/product/0198359829/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359829&linkCode=as2&tag=nrjc-21&linkId=90e8d7b4f039d53035238fa0320fe00b ''Gases; collection, pages 265, 267, Gateway GCSE Chemistry, Oxford, OCR  '']
 +
:[https://www.amazon.co.uk/gp/product/0198359829/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359829&linkCode=as2&tag=nrjc-21&linkId=90e8d7b4f039d53035238fa0320fe00b ''Gases; detection, pages 146-147, 265, 267, Gateway GCSE Chemistry, Oxford, OCR  '']
 +
:[https://www.amazon.co.uk/gp/product/1782945687/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945687&linkCode=as2&tag=nrjc-21&linkId=9a598e52189317a20311d7a632747bc9 ''Gases; pressure in, pages 17, 18, Gateway GCSE Physics; The Revision Guide, CGP, OCR  '']
 +
:[https://www.amazon.co.uk/gp/product/0198359829/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359829&linkCode=as2&tag=nrjc-21&linkId=90e8d7b4f039d53035238fa0320fe00b ''Gases; pressure, page 179, Gateway GCSE Chemistry, Oxford, OCR  '']
 +
:[https://www.amazon.co.uk/gp/product/0198359829/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359829&linkCode=as2&tag=nrjc-21&linkId=90e8d7b4f039d53035238fa0320fe00b ''Gases; refined crude oil, page 239, Gateway GCSE Chemistry, Oxford, OCR  '']
 +
:[https://www.amazon.co.uk/gp/product/0198359829/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359829&linkCode=as2&tag=nrjc-21&linkId=90e8d7b4f039d53035238fa0320fe00b ''Gases; volume, pages 170-171, 174, Gateway GCSE Chemistry, Oxford, OCR  '']

Latest revision as of 11:37, 11 December 2019

Key Stage 2

Meaning

Gas is a state of matter that can change size and shape to fit any container.

About Gases

Most gases are invisible but we can feel them.
When the air moves we call it the wind.
Gases are a state of matter that:
GasPour.png
  • Cannot hold their shape.
  • Fit the shape of their container.
  • Can be poured and will flow.
GasSquash.png
Gases can be squashed into a smaller size.

Examples of gas materials:

  • Air (A mixture of gases, mostly nitrogen and oxygen)
  • Steam

Key Stage 3

Meaning

The Particle Model of a gas.

Gas is a State of Matter in which the particles are separated by large distances and can move freely.

About Gases

ParticleModelGasPour.png
  • Gases cannot hold their shape because the particles are free to move.
  • Gases fit the shape of their containers because the particles are free to move.
  • A gas can be poured and will flow because the particles are free to move.
ParticleModelGasSquash.png
Gas can be squashed into a smaller size because the particles are spread apart.

Key Stage 4 Foundation

Meaning

Gas is a State of Matter in which the particles are separated by large distances and can move freely.

About Gases

When a substance is in its gaseous state it is always less dense than in its liquid or solid state due to the particles in a gas being spread far apart from each other.
A substance which is gaseous at room temperature has a smaller force of attraction between particles than a substance which is liquid or solid at room temperature.
Gases
Particle Diagram Particle Arrangement Property
ParticleModelGas.png
 Particles are free to move in all directions. Gases fit the size of their container.
Gases fit the shape of their container.
Convection happens most easily in gases.
Particles are spread apart. Gases can be compressed into a smaller volume.
Sound passes through gases slower than liquids and solids.
Thermal Conduction is very poor in a gases.

Key Stage 4 Higher

Molar Gas Volume

At Standard Temperature and Pressure (20°C and 101,000Pa) the volume of one mole of gas is 24 dm3.
The volume of gas required or produced in a chemical reaction can be calculated from the mass of the gas and its Relative Formula Mass.

Example Calculations

Finding the Volume of Gas
Calculate the volume of 4g of Hydrogen gas. Calculate the volume of 8g of Oxygen gas. Calculate the volume of 20g of Methane gas.
1.Find the Relative Formula Mass of the gas.

Chemical Formula of Hydrogen = H2

Relative Atomic Mass of Hydrogen = 1g

Relative Formula Mass of H2 = 2g

1.Find the Relative Formula Mass of the gas.

Chemical Formula of Oxygen = O2

Relative Atomic Mass of Oxygen = 16g

Relative Formula Mass of O2 = 32g

1.Find the Relative Formula Mass of the gas.

Chemical Formula of Methane = CH4

Relative Atomic Mass of Hydrogen = 1g


Relative Atomic Mass of Carbon = 12g

Relative Formula Mass of CH4 = 16g

2. Calculate the number of moles of gas.

1 mole = 2g

No. Moles = \(\frac{Mass}{M_r}\)

No. Moles = \(\frac{4}{2}\)

No. Moles = 2mol

2. Calculate the number of moles of gas.

1 mole = 32g

No. Moles = \(\frac{Mass}{M_r}\)

No. Moles = \(\frac{8}{32}\)

No. Moles = 0.25 mol

2. Calculate the number of moles of gas.

1 mole = 16g

No. Moles = \(\frac{Mass}{M_r}\)

No. Moles = \(\frac{20}{16}\)

No. Moles = 1.25 mol

3. Find the volume in dm3.

Volume = 24 x (number of moles)

Volume = 24 x (2)

Volume = 48dm3

3. Find the volume in dm3.

Volume = 24 x (number of moles)

Volume = 24 x (0.25)

Volume = 6dm3

3. Find the volume in dm3.

Volume = 24 x (number of moles)

Volume = 24 x (1.25)

Volume = 30dm3

Finding the Mass of Gas from the Volume
Calculate the mass of 12dm3 of Hydrogen gas. Calculate the mass of 36dm3 of Nitrogen gas. Calculate the mass of 18dm3 of Ethane gas.
1.Find the Relative Formula Mass of the gas.

Chemical Formula of Hydrogen = H2

Relative Atomic Mass of Hydrogen = 1g

Relative Formula Mass of H2 = 2g

1.Find the Relative Formula Mass of the gas.

Chemical Formula of Nitrogen = N2

Relative Atomic Mass of Nitrogen = 14g

Relative Formula Mass of N2 = 28g

1.Find the Relative Formula Mass of the gas.

Chemical Formula of Ethane = C2H6

Relative Atomic Mass of Hydrogen = 1g

Relative Atomic Mass of Carbon = 12g

Relative Formula Mass of C2H6 = 30g

2. Calculate the number of moles of gas.

Volume = 24 x (number of moles)

12 = 24 x (number of moles)

Number of moles = 12/24

Number of moles = 0.5

2. Calculate the number of moles of gas.

Volume = 24 x (number of moles)

36 = 24 x (number of moles)

Number of moles = 36/24

Number of moles = 1.5

2. Calculate the number of moles of gas.

Volume = 24 x (number of moles)

12 = 24 x (number of moles)

Number of moles = 18/24

Number of moles = 0.75

3. Find the mass of gas from the number of moles.

No. Moles = \(\frac{Mass}{M_r}\)

0.5 = \(\frac{Mass}{2}\)

Mass = \(0.5\times2\)

Mass = 1g Volume = 48dm3

3. Find the mass of gas from the number of moles.

No. Moles = \(\frac{Mass}{M_r}\)

1.5 = \(\frac{Mass}{28}\)

Mass = \(1.5\times28\)

Mass = 42g

3. Find the mass of gas from the number of moles.

No. Moles = \(\frac{Mass}{M_r}\)

0.75 = \(\frac{Mass}{30}\)

Mass = \(0.75\times30\)

Mass = 22.5g

References

AQA

Gas, pages 13, 34-5, 82-5, 96-101, GCSE Physics; Student Book, Collins, AQA
Gas; pressure, pages 82-5, 96-9, 257, GCSE Physics; Student Book, Collins, AQA
Gas; volume, page 98, GCSE Physics; Student Book, Collins, AQA
Gases pages 36, 37, 46, 107, GCSE Chemistry; The Revision Guide, CGP, AQA
Gases, page 107, GCSE Physics; The Complete 9-1 Course for AQA, CGP, AQA
Gases, page 71, GCSE Physics, Hodder, AQA
Gases, page 88, GCSE Chemistry; The Revision Guide, CGP, AQA
Gases, page 97, GCSE Combined Science Trilogy; Physics, CGP, AQA
Gases, pages 100, 101, 124, GCSE Chemistry, CGP, AQA
Gases, pages 164-5, 323, GCSE Combined Science Trilogy 1, Hodder, AQA
Gases, pages 6, 36-37, GCSE Chemistry; Third Edition, Oxford University Press, AQA
Gases, pages 78-79, 83, 86-89, GCSE Physics; Third Edition, Oxford University Press, AQA
Gases, pages 98, 99, GCSE Combined Science Trilogy; Chemistry, CGP, AQA
Gases; analysis, pages 184-185, GCSE Chemistry; Third Edition, Oxford University Press, AQA
Gases; atmosphere, pages 194-205, GCSE Chemistry; Third Edition, Oxford University Press, AQA
Gases; density of, page 323, GCSE Combined Science Trilogy 1, Hodder, AQA
Gases; gas pressure, page 193, GCSE Combined Science; The Revision Guide, CGP, AQA
Gases; gas pressure, page 41, GCSE Physics; The Revision Guide, CGP, AQA
Gases; gas syringes, pages 140, 232, GCSE Combined Science; The Revision Guide, CGP, AQA
Gases; greenhouse effect, pages 198-202, GCSE Chemistry; Third Edition, Oxford University Press, AQA
Gases; Greenhouse gases, pages 170-3, GCSE Combined Science Trilogy 2, Hodder, AQA
Gases; identification of, page 207, GCSE Chemistry, Hodder, AQA
Gases; Identification of, pages 160, GCSE Combined Science Trilogy 2, Hodder, AQA
Gases; In the atmosphere, pages 167, GCSE Combined Science Trilogy 2, Hodder, AQA
Gases; measuring volumes, pages 140, 232, 237, GCSE Combined Science; The Revision Guide, CGP, AQA
Gases; natural gas, page 178, GCSE Combined Science; The Revision Guide, CGP, AQA
Gases; natural gas, pages 18, 21, GCSE Physics; The Revision Guide, CGP, AQA
Gases; natural gas, pages 45, 46 54, 56, GCSE Combined Science Trilogy; Physics, CGP, AQA
Gases; natural gas, pages 47, 48, 56, 58, GCSE Physics; The Complete 9-1 Course for AQA, CGP, AQA
Gases; particle model of, pages 330-1, GCSE Combined Science Trilogy 1, Hodder, AQA
Gases; particle model of, pages 78-80, 85-6, GCSE Physics, Hodder, AQA
Gases; particle motion, page 104, GCSE Combined Science Trilogy; Physics, CGP, AQA
Gases; particle motion, page 193, GCSE Combined Science; The Revision Guide, CGP, AQA
Gases; particle motion, pages 114, 115, GCSE Physics; The Complete 9-1 Course for AQA, CGP, AQA
Gases; particle motion, pages 38, 41, GCSE Physics; The Revision Guide, CGP, AQA
Gases; pressure, page 104, GCSE Combined Science Trilogy; Physics, CGP, AQA
Gases; pressure, page 36, GCSE Chemistry; Third Edition, Oxford University Press, AQA
Gases; pressure, pages 114, 115, 169, 171, GCSE Physics; The Complete 9-1 Course for AQA, CGP, AQA
Gases; states of matter, pages 106, 107, 110-112, GCSE Physics; The Complete 9-1 Course for AQA, CGP, AQA
Gases; states of matter, pages 121, 122, 193, 195, GCSE Combined Science; The Revision Guide, CGP, AQA
Gases; states of matter, pages 38-40, GCSE Physics; The Revision Guide, CGP, AQA
Gases; states of matter, pages 96, 97, 100-102, GCSE Combined Science Trilogy; Physics, CGP, AQA
Gases; tests for, page 153, GCSE Combined Science; The Revision Guide, CGP, AQA
Gases; Volume and mass measurement, pages 120, GCSE Combined Science Trilogy 2, Hodder, AQA
Gases; volume, pages 78-79, 129, GCSE Chemistry; Third Edition, Oxford University Press, AQA

Edexcel

Gases, molar volumes of, pages 118-119, GCSE Chemistry, Pearson, Edexcel
Gases, page 300, GCSE Physics, CGP, Edexcel
Gases, pages 34, 35, GCSE Chemistry; The Revision Guide, CGP, Edexcel
Gases, pages 96, 98, GCSE Chemistry, CGP, Edexcel
Gases, pages 97, 98, GCSE Combined Science; The Revision Guide, CGP, Edexcel
Gases; doing work, page 312, GCSE Physics, CGP, Edexcel
Gases; pressure, page 424, GCSE Combined Science, Pearson Edexcel
Gases; pressure, pages 192, 194-195, GCSE Physics, Pearson Edexcel
Gases; pressure, pages 310-312, 319, GCSE Physics, CGP, Edexcel
Gases; temperature, page 192, GCSE Physics, Pearson Edexcel
Gases; temperature, page 424, GCSE Combined Science, Pearson Edexcel
Gases; volume, pages 194-195, GCSE Physics, Pearson Edexcel

OCR

Gases, page 12, Gateway GCSE Chemistry; The Revision Guide, CGP, OCR
Gases, page 18, Gateway GCSE Chemistry, Oxford, OCR
Gases, pages 14, 17, 18, Gateway GCSE Physics; The Revision Guide, CGP, OCR
Gases, pages 82, 152, 155, Gateway GCSE Combined Science; The Revision Guide, CGP, OCR
Gases; atmosphere, pages 252-257, Gateway GCSE Chemistry, Oxford, OCR
Gases; calculating amounts, pages 170-171, Gateway GCSE Chemistry, Oxford, OCR
Gases; changing state, pages 76-77, Gateway GCSE Chemistry, Oxford, OCR
Gases; collecting, pages 128, 222, Gateway GCSE Combined Science; The Revision Guide, CGP, OCR
Gases; collection, pages 265, 267, Gateway GCSE Chemistry, Oxford, OCR
Gases; detection, pages 146-147, 265, 267, Gateway GCSE Chemistry, Oxford, OCR
Gases; pressure in, pages 17, 18, Gateway GCSE Physics; The Revision Guide, CGP, OCR
Gases; pressure, page 179, Gateway GCSE Chemistry, Oxford, OCR
Gases; refined crude oil, page 239, Gateway GCSE Chemistry, Oxford, OCR
Gases; volume, pages 170-171, 174, Gateway GCSE Chemistry, Oxford, OCR
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