Molar heat capacity of water in equilibrium with the 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)`

Explanation

By definition `C_(P,m) = (dq_(p))/(dT)`
For `H_(2)O(l) hArr H_(2)O(s)`,
temperature does not change if some heat is given to the system. Hence
`C_(P,m) =(+ve)/(Zero) =oo`