A sealed double-glazed window unit contains a fixed mass of gas. The frame is rigid, so the volume of the gas does not change.
The unit passes through three stages in an environmental test. The gas reaches the stated temperature at each stage.
| Stage | Temperature information |
|---|---|
| 1 | 8 ∘C8\,^\circ\mathrm{C}8∘C |
| 2 | 260 K |
| 3 | the temperature is increased by 30 ∘C30\,^\circ\mathrm{C}30∘C from stage 2 |
Compare the pressure of the gas at stages 1, 2 and 3.
Explain your answer in terms of the particles of the gas.
108 exam-style questions on Edexcel GCSE Physics 14.3 Gas pressure and temperature, covering 14.3.1 Gas pressure and particle motion, 14.3.2 Temperature and pressure at constant volume, 14.3.3 Absolute zero and the kelvin scale, 14.3.4 Compressing and expanding gases, 14.3.5 Volume and pressure at constant temperature, and 14.3.6 Doing work on a gas. Each one has a worked solution and a mark scheme showing where the marks go.