What is the entropy change (in JK^-1 ~mol^-1 ) when one mole of ice is converted into water at 0^° C ? (The enthalpy change for the conversion of ice to liquid water is 6.0 ~kJ ~mol^-1 at 0^° C )

Correct answer: (D) 21.98. S=fracq_r e v~T=6000/273 =21.978=21.98 JK^-1 ~mol^-1.

Q57 / 200 · NEET 2003 · Chemistry

What is the entropy change (in $\mathrm{JK}^{-1} \mathrm{~mol}^{-1}$ ) when one mole of ice is converted into water at $0^{\circ} \mathrm{C}$ ? (The enthalpy change for the conversion of ice to liquid water is $6.0 \mathrm{~kJ} \mathrm{~mol}^{-1}$ at $0^{\circ} \mathrm{C}$ )

$\mathrm{S}=\frac{q_{r e v}}{\mathrm{~T}}=\frac{6000}{273}$ $=21.978=21.98 \mathrm{JK}^{-1} \mathrm{~mol}^{-1}.$

Hence, the correct answer is option: 'D'.