Physics · May / June 2025 · Paper 11 · Question 14
5054Particle model
Air is heated in a sealed container with constant volume. Why does the air pressure increase when the temperature increases?
- AThe air molecules expand.
- BThe air molecules bounce off each other more frequently.
- CThe air molecules bounce off the walls more frequently.
- DThe number of air molecules increases.
As printed in the paper
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Correct answer: C. The air molecules bounce off the walls more frequently.
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