O-LevelPhysicsThermal Physics5054/12 · Oct/Nov 2023 · Q171 Mark

Which diagram shows the names of the changes of state that correspond to the directions of the arrows?

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Asolid → liquid (melting), liquid → gas (evaporating), gas → liquid (condensing), liquid → solid (freezing)

Bsolid → liquid (melting), liquid → gas (condensing), gas → liquid (evaporating), liquid → solid (freezing)

Csolid → liquid (freezing), liquid → gas (evaporating), gas → liquid (condensing), liquid → solid (melting)

Dsolid → liquid (melting), liquid → gas (evaporating), gas → liquid (condensing), liquid → solid (freezing)

✓ Correct answer

D: solid → liquid (melting), liquid → gas (evaporating), gas → liquid (condensing), liquid → solid (freezing)

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Topic: Thermal Physics, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source: O-Level Physics, Oct/Nov 2023 Paper 1 Variant 2, question 17.

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