O-LevelPhysicsThermal Physics5054/11 · Oct/Nov 2010 · Q191 Mark

A hot liquid is poured into a beaker. The graph shows how its temperature changes as it cools towards room temperature. Which processes are taking place at region X?

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Aboiling and evaporation

Bcondensation only

Cevaporation only

Dsolidification and evaporation

✓ Correct answer

D: solidification and evaporation

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Topic: Thermal Physics, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source: O-Level Physics, Oct/Nov 2010 Paper 1 Variant 1, question 19.

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