Question

What is the entropy change in $J.K^{-1}$ during the melting of $27.3$ grams of ice at $0^{\circ }C$?
(Latent heat of fusion of ice $=330J.g^{-1})$

• A. $330$
• B. $12.1$
• C. $3.3$
• D. $33$

Answer 1

The correct option is D $33$

Temperature $T=0{}^{o}C=273K$

Heat, $q=330\times 27.3J$

Entropy change, $\Delta S=\frac{330\times 27.3J}{273K}=33J/K$