A) Increase for ice, decrease for wax
B) Increase for wax, decrease for ice
C) Decrease for both ice and wax
D) Increase for both ice and wax.
Correct Answer: A
Solution :
From the relation \[\Delta U=\Delta \theta -P\Delta V\] wax expand on melting, so \[P\Delta V\]is positive hence \[\Delta V\] decreases. But ice contracts in melting so, \[P\Delta V\]is negative and \[\Delta U\] increases.You need to login to perform this action.
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