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O-LevelPhysicsThermal Physics5054/11 · May/June 2020 · Q251 Mark

A fixed mass of gas is enclosed in a cylinder by a piston which is free to move. Which combination of changes to the pressure and to the temperature must increase the density of the gas?

Apressure: decrease, temperature: decrease
Bpressure: decrease, temperature: increase
Cpressure: increase, temperature: decrease
Dpressure: increase, temperature: increase

✓ Correct answer

C: pressure: increase, temperature: decrease

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About this question

Topic
Thermal Physics, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source
O-Level Physics, May/June 2020 Paper 1 Variant 1, question 25.

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