O-LevelPhysicsThermal Physics5054/11 · May/June 2017 · Q191 Mark

A fixed mass of gas undergoes a change of volume at constant temperature. Which diagram shows the relationship between the volume and the pressure of the gas?

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AGraph showing pressure increasing linearly with volume.

BGraph showing pressure decreasing linearly with volume.

CGraph showing pressure increasing with volume with an increasing gradient (curved).

DGraph showing pressure decreasing with volume with a decreasing gradient (curved, inverse relationship).

✓ Correct answer

D: Graph showing pressure decreasing with volume with a decreasing gradient (curved, inverse relationship).

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Topic: Thermal Physics, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source: O-Level Physics, May/June 2017 Paper 1 Variant 1, question 19.

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