Molar heat capacity of water in equilibrium with ice at constant pressure is

Options

A. Zero
B. Infinity `(oo)`
C. `40.45 kJ K ^(-1) mol ^(-1)`
D. `75.48 J K ^(-1) mol ^(-1)`

Answer

B

Explanation

By definition `C _(P.m) = (dq _(P))/(dT) . For H _(2)O (l) hArr H_(2)O (s),` temperature does not chane is some heat is given to the system. Hence `C _(P.m) = (+ve)/("Zero") = oo`