Chemistry 9701 · 25 Equilibria
25.2 Partition coefficients
Define, calculate, and explain partition coefficients (Kpc) based on solute and solvent polarities.
- Questions
- 20
- Years
- 2015–2026
- Multiple choice
- 1
- Written answer
- 19
- Average marks
- 9.9
Where this subtopic appears
- Paper 4variants 41, 42, 43, 4417
- Paper 5variants 51, 532
- Paper 1variants 121
Questions by year
| Year | Feb/March | May/June | Oct/Nov | Total |
|---|---|---|---|---|
| 2026 | – | 2 | – | 2 |
| 2023 | – | 2 | 1 | 3 |
| 2022 | – | 2 | 2 | 4 |
| 2021 | – | – | 1 | 1 |
| 2020 | – | 2 | 2 | 4 |
| 2018 | 1 | – | 2 | 3 |
| 2016 | – | – | 1 | 1 |
| 2015 | – | 2 | – | 2 |
