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In the case of ice converted into water

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By Expert Faculty of Sri Chaitanya
a
there is no change in internal energy as temperature remains constant.
b
work is done by the system.
c
change in internal energy is less than 80 calories per gram
d
change in internal energy is more than 80 calories per gram.
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detailed solution

Correct option is D

In change of state latent heat is involved in changing the state.  here work is done on the system by atmosphere dQ=du-dw du =dQ+dw>dQ


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