A sealed aerosol can contains a gas. A warning on the can says 'Do not place this can on a fire.'
The can is taken from a warm room and put into a freezer. The volume of the can does not change.
Complete Table 1 to show what happens to each quantity as the gas inside the can cools.
Table: three quantities describing the gas inside the sealed aerosol can
| Quantity | What happens as the gas cools |
|---|---|
| Average kinetic energy of the molecules | |
| Number of molecules of gas in the can | |
| Pressure of the gas in the can |
Explain why the warning on the can is needed.
40 exam-style questions on AQA GCSE Physics 3.3 Particle model and pressure, covering 3.3.1 Particle motion in gases, 3.3.2 Pressure in gases, and 3.3.3 Increasing the pressure of a gas (HT only). Each one has a worked solution and a mark scheme showing where the marks go.