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O-LevelPhysicsThermal Physics5054/11 · May/June 2024 · Q191 Mark

Boiling and evaporation are different processes. Which statement is correct?

ABoiling only occurs at the surface of a liquid.
BEvaporation only occurs when the temperature of the liquid is high enough.
CEvaporation does not change the temperature of a liquid.
DWhen a boiling liquid is heated its temperature remains constant.

✓ Correct answer

D: When a boiling liquid is heated its temperature remains constant.

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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 2024 Paper 1 Variant 1, question 19.

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