Difference between revisions of "Nuclear Fusion"
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<math>{}_1^1H + {}_1^3H \rightarrow {}_2^4He</math> | <math>{}_1^1H + {}_1^3H \rightarrow {}_2^4He</math> | ||
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+ | ===References=== | ||
+ | ====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 ''Nuclear fusion, page 108, GCSE Physics, 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 ''Nuclear fusion, page 244, GCSE Chemistry, Hodder, 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 ''Nuclear fusion, pages 106-107, GCSE Physics; 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 ''Nuclear fusion, pages 140, 141, 318, GCSE Physics; The Complete 9-1 Course for AQA, 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 ''Nuclear fusion, pages 187-8, GCSE Combined Science Trilogy 2, Hodder, 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=f0dfb66dafcb0c6e9449e7b1a4ae1ac339 ''Nuclear fusion, pages 49, 100, GCSE Physics; The Revision Guide, 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 ''Nuclear fusion; in stars, page 252, GCSE Physics, Hodder, AQA ''] |
Revision as of 14:40, 10 November 2019
Contents
Key Stage 4
Meaning
Nuclear fusion is a process in which two small atomic nuclei join together to become a larger nucleus.
About Nuclear Fusion
- In a nuclear fusion reaction the products have less mass than the reactants as some of the mass is converted into energy in the process due to the Mass-Energy Equivalence.
- For a fusion reaction to occur the two nuclei must have enough kinetic energy to overcome the electrostatic force of repulsion between the positively charged nuclei.
- To provide enough kinetic energy to the nuclei the substance must be heated to a temperature of several million degrees Celsius.
- Nuclear fusion occurs naturally in the centre of a Star due to the high temperatures and pressure.
- Nuclear fusion is possible in laboratories on Earth but it cannot be sustained for long periods of time to produce enough energy to be useful as an energy resource.
- Nuclear fusion in laboratories on Earth must be done at much higher temperature than in the centre of Stars because the centre of Stars is a much higher pressure so nuclei collide more often.
Nuclear Fusion Reactions
Fusion of a Tritium and a Deuterium nucleus produces a Helium nucleus.
\({}_1^2H + {}_1^3H \rightarrow {}_2^4He + {}_0^1n\) This is the most common pathway for nuclear fusion in Stars as the neutron goes on to be captured by a Hydrogen nucleus to become Deuterium or captured by a Deuterium nucleus to become a Tritium nucleus. |
Fusion of two Hydrogen nuclei (protons) produces a Deuterium nucleus.
\({}_1^1H + {}_1^1H \rightarrow {}_1^2H + {}_{-1}^0\beta\) |
Fusion of a Hydrogen nucleus (proton) and a Deuterium nucleus produces a Tritium nucleus.
\({}_1^1H + {}_1^2H \rightarrow {}_1^3H + {}_{-1}^0\beta\) |
Fusion of two Deuterium nuclei produces a Helium nucleus.
\({}_1^2H + {}_1^2H \rightarrow {}_2^4He\) |
Fusion of a Hydrogen nucleus (proton) and a Tritium nucleus produces a Helium nucleus.
\({}_1^1H + {}_1^3H \rightarrow {}_2^4He\) |
References
AQA
- Nuclear fusion, page 108, GCSE Physics, Hodder, AQA
- Nuclear fusion, page 244, GCSE Chemistry, Hodder, AQA
- Nuclear fusion, pages 106-107, GCSE Physics; Third Edition, Oxford University Press, AQA
- Nuclear fusion, pages 140, 141, 318, GCSE Physics; The Complete 9-1 Course for AQA, CGP, AQA
- Nuclear fusion, pages 187-8, GCSE Combined Science Trilogy 2, Hodder, AQA
- Nuclear fusion, pages 49, 100, GCSE Physics; The Revision Guide, CGP, AQA
- Nuclear fusion; in stars, page 252, GCSE Physics, Hodder, AQA