JEE PHYSICS MCQ: THERMAL PROPERTIES OF MATTER

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During the melting of a slab of ice at

273 \mathrm{~K}

at atmospheric pressure

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Correct option: B

Positive work is done on the ice-water system by the atmosphere

Option B (Positive work is done on the ice-water system by the atmosphere) is correct because ice has a lower density than water, so when it melts, the volume decreases, and the atmosphere does positive work on the system.

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