Chemistry 0620 · 1 States of matter
1.2 Diffusion
Describe and explain diffusion using kinetic particle theory, including the effect of relative molecular mass on gas diffusion rates.
- Questions
- 119
- Years
- 2010–2026
- Multiple choice
- 65
- Written answer
- 54
- Average marks
- 5.5
Practise states of matter questions with instant markingTeachers: build a worksheet from past papers
Where this subtopic appears
- Paper 2variants 21, 22, 2350
- Paper 3variants 31, 32, 3330
- Paper 1variants 11, 12, 1327
- Paper 4variants 41, 42, 4312
Questions by year
| Year | Feb/March | May/June | Oct/Nov | Total |
|---|---|---|---|---|
| 2026 | 2 | 2 | – | 4 |
| 2024 | – | 1 | – | 1 |
| 2023 | 2 | 5 | 2 | 9 |
| 2022 | 2 | 3 | 5 | 10 |
| 2021 | 2 | 7 | 2 | 11 |
| 2020 | – | 1 | 7 | 8 |
| 2019 | – | 4 | 6 | 10 |
| 2018 | 2 | 7 | 1 | 10 |
| 2017 | 4 | 3 | 6 | 13 |
| 2016 | 2 | 3 | 9 | 14 |
| 2015 | 2 | 5 | – | 7 |
| 2014 | – | 4 | 4 | 8 |
| 2013 | – | – | 2 | 2 |
| 2012 | – | 4 | 4 | 8 |
| 2011 | – | 1 | – | 1 |
| 2010 | – | 2 | 1 | 3 |
