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Question

At 0oC, if enthalpy of vapourisation of ice is 40.65 kJ/mol. the molar entropy change for melting of ice at 0oC is kJ/mol.

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Solution

Change in entropy for a phase transformation is given as:
Stransformation=HtransformationT

putting all the values from question we get:

Sfusion=HfusionT

Sfusion=40.65273

Sfusion=0.148 kJ/mol


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