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During the melting of a slab of ice at 2...

During the melting of a slab of ice at 273K at atmospheric pressure,

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The correct Answer is:
(a) The value of ice decreases on melting. Hence the work done by the atmosphere on ice-water system is position in nature.
(b) Since hat is absorbed by the ice during melting the internal energy of the ice- water system increases.
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