During the melting of a slab of ice at 273K at atmospheric pressure,A. positive work is done by the ice-water system on the atmosphere.B. positive work is done on the ice-water system by the atmosphere.C. the internal energy of the ice-water system increases.D. the internal energy of the ice-water system decreases.

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

1.	During the melting of a slab of ice at 273K at atmospheric pressure,A. positive work is done by the ice-water system on the atmosphere.B. positive work is done on the ice-water system by the atmosphere.C. the internal energy of the ice-water system increases.D. the internal energy of the ice-water system decreases.
Answer» Correct Answer - B::C (b,c) There is a decrease in volume during melting of an ice slab at 273K. Therefore, negative work is done by ice-water system on the atmosphere or positive work is done on the ice-water system by the atmosphere . Hence, option (b) is correct.

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