Chemistry - Thermodynamics - I Question with Solution | TestHub

When water is at equilibrium with ice, the temperature of system is of melting point of water at that pressure.
Here,$\mathrm{\Delta }\mathrm{T}=0$, while Heat exchange,$\mathrm{\Delta }\mathrm{Q}\ne 0$
So molar heat capacity is,$\mathrm{\Delta }\mathrm{Q}/\mathrm{\Delta }\mathrm{T}\to \mathrm{\infty }$.
It can be also represented as follows
${\mathrm{C}}_{\mathrm{p},\mathrm{}\mathrm{m}}\underset{\mathrm{T}\to 0}{{\mathrm{}}_{\mathrm{L}\mathrm{t}}}{\left(\frac{\partial \mathrm{H}}{\partial \mathrm{T}}\right)}_{\mathrm{p}}=\mathrm{\infty }$