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) internal energy of ice-water system decreases
D) none of the above
Correct Answer: B
Solution :
When a slab of ice at \[273\,\,K\] melts, volume of water formed is less than the volume of ice melted ie, volume decreases. Therefore, work done by ice-water system is negative or in other words positive work is done by the atmosphere on the ice-water system. This increases the internal energy of ice-water system.
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