A) \[11.73\text{ }J{{K}^{-1}}\text{ }mo{{l}^{-1}}\]
B) \[18.84\text{ }J{{K}^{-1}}\text{ }mo{{l}^{-1}}\]
C) \[~21.97J{{K}^{-1}}\text{ }mo{{l}^{-1}}\]
D) \[24.47\text{ }J{{K}^{-1}}\text{ }mo{{l}^{-1}}\]
Correct Answer: C
Solution :
Entropy change of fusion \[\Delta {{S}_{f}}=\frac{\Delta {{H}_{f}}}{T}\] \[\Delta {{H}_{f}}=60\times {{10}^{3}}J,\,mo{{l}^{-1}},\,T=273\,K\] \[\Delta {{S}_{f}}=\frac{60\times {{10}^{3}}}{273}\] \[=21.97\,J\,{{K}^{-1}}mo{{l}^{-1}}\]
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