A rigid, sealed metal canister filled with gas is placed in a freezer, causing its temperature to fall.
What happens to the average speed of the gas molecules and to the pressure of the gas inside the canister as the temperature decreases?
Average speed decreases; gas pressure decreases
Average speed decreases; gas pressure increases
Average speed increases; gas pressure decreases
Average speed increases; gas pressure increases
126 exam-style questions on CIE IGCSE Physics 2.1.3a The absolute scale of temperature. Each one has a worked solution and a mark scheme showing where the marks go.