State Change - Revision history

Ellen References at 09:24, 29 November 2019

2019-11-29T09:24:15Z

2019-03-06T10:12:41Z

‎Key Stage 4

2018-12-23T18:54:16Z

‎About State Changes

2018-12-23T18:50:08Z

‎Energy and State Changes

2018-12-23T18:48:45Z

‎About State Changes

2018-12-23T18:47:21Z

‎Key Stage 4

2018-12-23T18:37:06Z

‎About State Changes

2018-12-23T18:35:01Z

‎Meaning

2018-12-23T18:34:36Z

‎Meaning

2018-12-23T18:33:26Z

‎Meaning

← Older revision		Revision as of 09:24, 29 November 2019
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	: When the [[bond]]s between [[particle]]s in a [[solid]] or a [[liquid]] are broken the [[particle]]s gain [[Potential Energy\|potential energy]]. This is an [[endothermic]] process because it needs [[energy]].		: When the [[bond]]s between [[particle]]s in a [[solid]] or a [[liquid]] are broken the [[particle]]s gain [[Potential Energy\|potential energy]]. This is an [[endothermic]] process because it needs [[energy]].
	: When [[bond]]s are formed between [[particle]]s in a [[gas]] or a [[liquid]] the [[particle]]s lose [[Potential Energy\|potential energy]]. This is an [[exothermic]] process because [[energy]] is given off.		: When [[bond]]s are formed between [[particle]]s in a [[gas]] or a [[liquid]] the [[particle]]s lose [[Potential Energy\|potential energy]]. This is an [[exothermic]] process because [[energy]] is given off.
		+
		+	====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 ''State changes, page 3, GCSE Chemistry, Pearson, Edexcel '']

@@ Line 50: / Line 50: @@
 ===About State Changes===
 : '''State changes''' happen when a [[substance]] gains enough [[energy]] to break the [[bond]]s holding [[particle]]s together or loses enough [[energy]] for [[bond]]s to form between [[particle]]s.
 : When the [[bond]]s between [[particle]]s in a [[solid]] or a [[liquid]] are broken the [[particle]]s gain [[Potential Energy|potential energy]]. This is an [[endothermic]] process because it needs [[energy]].
 : When [[bond]]s are formed between [[particle]]s in a [[gas]] or a [[liquid]] the [[particle]]s lose [[Potential Energy|potential energy]]. This is an [[exothermic]] process because [[energy]] is given off.

@@ Line 51: / Line 51: @@
 ===About State Changes===
 : '''State changes''' happen when a [[substance]] gains enough [[energy]] to break the [[bond]]s holding [[particle]]s together or loses enough [[energy]] for [[bond]]s to form between [[particle]]s.
-: When the [[particle]]s in a [[solid]] gain enough [[Potential Energy|potential energy]] to break the [[bond]]s holding them in fixed positions the [[substance]] becomes a [[liquid]].
+: When the [[bond]]s between [[particle]]s in a [[solid]] or a [[liquid]] are broken the [[particle]]s gain [[Potential Energy|potential energy]]. This is an [[endothermic]] process because it needs [[energy]].
-: When the [[particle]]s in a [[liquid]] gain enough [[Potential Energy|potential energy]] to break the [[bond]]s keeping them together the [[substance]] becomes a [[gas]].
+: When [[bond]]s are formed between [[particle]]s in a [[gas]] or a [[liquid]] the [[particle]]s lose [[Potential Energy|potential energy]]. This is an [[exothermic]] process because [[energy]] is given off.

@@ Line 38: / Line 38: @@
 : When a [[solid]] [[subliming|sublimates]] [[energy]] is needed to break the [[bond]]s holding the [[particle]]s in fixed positions and keeping the [[particle]]s together.
-*[[Freezing]], [[Condensing]] and [[Depositing]] are [[exothermic]] changes because it releases [[energy]] when it happens. The [[material]] has less [[after]] it has happened.
+*[[Freezing]], [[Condensing]] and [[Depositing]] are [[exothermic]] changes because it releases [[energy]] when it happens. The [[material]] has less after it has happened.
 : When a [[gas]] [[condensing|condenses]] [[energy]] is released as [[bond]]s form between adjacent [[molecule]]s to hold them together.
 : When a [[liquid]] [[freezing|freezes]] [[energy]] is released as [[bond]]s form between adjacent [[molecule]]s to keep them in fixed positions.

@@ Line 52: / Line 52: @@
 : '''State changes''' happen when a [[substance]] gains enough [[energy]] to break the [[bond]]s holding [[particle]]s together or loses enough [[energy]] for [[bond]]s to form between [[particle]]s.
 : When the [[particle]]s in a [[solid]] gain enough [[Potential Energy|potential energy]] to break the [[bond]]s holding them in fixed positions the [[substance]] becomes a [[liquid]].
 When a [[substance]] changes from [[solid]] to [[liquid]] and [[liquid]] to [[gas]] the [[particle]]s need to gain [[Potential Energy|potential energy]].

← Older revision		Revision as of 18:47, 23 December 2018
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	===About State Changes===		===About State Changes===
	: '''State changes''' happen when a [[substance]] gains enough [[energy]] to break the [[bond]]s holding [[particle]]s together or loses enough [[energy]] for [[bond]]s to form between [[particle]]s.		: '''State changes''' happen when a [[substance]] gains enough [[energy]] to break the [[bond]]s holding [[particle]]s together or loses enough [[energy]] for [[bond]]s to form between [[particle]]s.
		+	: When the [[particle]]s in a [[solid]] gain enough [[Potential Energy\|potential energy]] to break the [[bond]]s holding them in fixed positions the [[substance]] becomes a [[liquid]].
		+
		+	When a [[substance]] changes from [[solid]] to [[liquid]] and [[liquid]] to [[gas]] the [[particle]]s need to gain [[Potential Energy\|potential energy]].

← Older revision		Revision as of 18:37, 23 December 2018
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	===About State Changes===		===About State Changes===
−	: '''State changes''' ~~happens~~ when a [[substance]] gains enough [[energy]] to break the [[bond]]s holding [[particle]]s together or loses enough [[energy]] for [[bond]]s to form between [[particle]]s.	+	: '''State changes''' happen when a [[substance]] gains enough [[energy]] to break the [[bond]]s holding [[particle]]s together or loses enough [[energy]] for [[bond]]s to form between [[particle]]s.

@@ Line 47: / Line 47: @@
 ==Key Stage 4==
 ===Meaning===
-A '''state change''' is a [[Physical Change|physical change]] in which a [[substance]] turns from one [[State of Matter|state of matter]] to another.
+A '''state change''' is a [[Physical Change|physical change]] in which a [[substance]] turns from one [[State of Matter|state of matter]] into to another.
 ===About State Changes===
 : '''State changes''' happens when a [[substance]] gains enough [[energy]] to break the [[bond]]s holding [[particle]]s together or loses enough [[energy]] for [[bond]]s to form between [[particle]]s.