Chemistry 9701 · 4 States of matter
4.1 The gaseous state: ideal and real gases and pV = nRT
Explain gas pressure, define ideal gas assumptions, and perform calculations using the ideal gas equation.
- Questions
- 110
- Years
- 2015–2026
- Multiple choice
- 80
- Written answer
- 30
- Average marks
- 4.5
Practise states of matter questions with instant markingTeachers: build a worksheet from past papers
Where this subtopic appears
- Paper 1variants 11, 12, 13, 1480
- Paper 2variants 21, 22, 2320
- Paper 5variants 51, 52, 538
- Paper 3variants 341
- Paper 4variants 441
Questions by year
| Year | Feb/March | May/June | Oct/Nov | Total |
|---|---|---|---|---|
| 2026 | – | 7 | – | 7 |
| 2023 | 2 | 4 | 6 | 12 |
| 2022 | – | 5 | 5 | 10 |
| 2021 | 4 | 6 | 4 | 14 |
| 2020 | 1 | 4 | 5 | 10 |
| 2019 | 2 | 5 | 2 | 9 |
| 2018 | 2 | 3 | 7 | 12 |
| 2017 | 2 | 5 | 3 | 10 |
| 2016 | 1 | 6 | 8 | 15 |
| 2015 | – | 8 | 3 | 11 |
