A rigid, sealed metal canister filled with gas is placed inside a refrigerator, causing its temperature to decrease.
What happens to the average speed of the gas molecules and to the pressure of the gas in the canister as the temperature falls?
Average speed falls; Gas pressure falls
Average speed falls; Gas pressure rises
Average speed rises; Gas pressure falls
Average speed rises; Gas pressure rises
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.