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O-LevelPhysicsThermal Physics5054/12 · Oct/Nov 2018 · Q201 Mark

What increases when a liquid becomes a gas at its boiling point?

Athe average kinetic energy of the molecules
Bthe molecular size
Cthe molecular spacing
Dthe total number of molecules

✓ Correct answer

C: the molecular spacing

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About this question

Topic
Thermal Physics, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source
O-Level Physics, Oct/Nov 2018 Paper 1 Variant 2, question 20.

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