Chemistry 5070 · 1 States of matter
1.2 Diffusion
Explain diffusion using kinetic particle theory and describe how relative molecular mass affects the rate of diffusion in gases.
- Questions
- 50
- Years
- 2005–2026
- Multiple choice
- 37
- Written answer
- 13
- Average marks
- 2.9
Practise states of matter questions with instant markingTeachers: build a worksheet from past papers
Where this subtopic appears
- Paper 1variants 01, 11, 1233
- Paper 4variants 04, 41, 429
- Paper 2variants 02, 21, 228
Questions by year
| Year | May/June | Oct/Nov | Total |
|---|---|---|---|
| 2026 | 1 | – | 1 |
| 2023 | 2 | 2 | 4 |
| 2022 | 2 | 1 | 3 |
| 2021 | – | 2 | 2 |
| 2020 | 1 | 2 | 3 |
| 2019 | 2 | – | 2 |
| 2018 | 3 | 3 | 6 |
| 2017 | 1 | 1 | 2 |
| 2016 | 2 | 2 | 4 |
| 2015 | 2 | 1 | 3 |
| 2014 | 2 | – | 2 |
| 2013 | 1 | – | 1 |
| 2012 | – | 1 | 1 |
| 2009 | 2 | 2 | 4 |
| 2008 | 1 | 2 | 3 |
| 2007 | 2 | 1 | 3 |
| 2006 | 1 | 1 | 2 |
| 2005 | 3 | 1 | 4 |
