Chemistry 5070 · 6 Chemical reactions
6.3 Reversible reactions and equilibrium
Describe reversible reactions, dynamic equilibrium, and Le Chatelier's principle, and explain the conditions used in the Haber and Contact processes.
- Questions
- 142
- Years
- 2004–2026
- Multiple choice
- 102
- Written answer
- 40
- Average marks
- 3.4
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Where this subtopic appears
- Paper 1variants 01, 11, 12102
- Paper 2variants 02, 21, 2238
- Paper 4variants 04, 422
Questions by year
| Year | May/June | Oct/Nov | Total |
|---|---|---|---|
| 2026 | 4 | – | 4 |
| 2023 | 6 | 5 | 11 |
| 2022 | 8 | 8 | 16 |
| 2021 | 8 | 10 | 18 |
| 2020 | 3 | 9 | 12 |
| 2019 | 6 | 5 | 11 |
| 2018 | 7 | 9 | 16 |
| 2017 | 6 | 5 | 11 |
| 2016 | 5 | 2 | 7 |
| 2015 | 5 | 2 | 7 |
| 2009 | 3 | 2 | 5 |
| 2008 | 3 | 2 | 5 |
| 2007 | 4 | 1 | 5 |
| 2006 | 2 | 5 | 7 |
| 2005 | 3 | 2 | 5 |
| 2004 | – | 2 | 2 |
