Chemistry 9701 · 23 Chemical energetics
23.2 Enthalpies of solution and hydration
Define and calculate enthalpies of solution and hydration using energy cycles, explaining trends qualitatively.
- Questions
- 28
- Years
- 2015–2023
- Multiple choice
- 5
- Written answer
- 23
- Average marks
- 9.1
Practise chemical energetics questions with instant markingTeachers: build a worksheet from past papers
Where this subtopic appears
- Paper 4variants 41, 42, 4317
- Paper 1variants 11, 135
- Paper 3variants 31, 32, 343
- Paper 5variants 51, 532
- Paper 2variants 221
Questions by year
| Year | Feb/March | May/June | Oct/Nov | Total |
|---|---|---|---|---|
| 2023 | – | 2 | – | 2 |
| 2022 | – | – | 3 | 3 |
| 2021 | – | 1 | – | 1 |
| 2020 | – | 1 | 5 | 6 |
| 2019 | – | 3 | – | 3 |
| 2018 | – | – | 1 | 1 |
| 2017 | – | 1 | – | 1 |
| 2016 | 1 | – | 2 | 3 |
| 2015 | – | 4 | 4 | 8 |
