Chemistry 9701 · 23 Chemical energetics
23.4 Gibbs free energy change, ΔG
Use the Gibbs equation to calculate free energy changes and predict reaction feasibility and temperature effects.
- Questions
- 37
- Years
- 2015–2026
- Multiple choice
- 1
- Written answer
- 36
- Average marks
- 12.2
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- Paper 4variants 41, 42, 4336
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| Year | Feb/March | May/June | Oct/Nov | Total |
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| 2026 | – | 3 | – | 3 |
| 2023 | 1 | 4 | 1 | 6 |
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| 2021 | 1 | – | 1 | 2 |
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| 2015 | – | 1 | – | 1 |
