Question

Which one of the following functions represents the Clapeyron equation pertaining to the change of phase of a pure substance?

a) $f(T, p, h_{fg})$

b) $f(T, p, h_{fg}, v_{fg})$

c) $f(T, p, h_{fg}, S_{fg})$

d) $f(T, p, h_{fg}, S_{fg}, v_{fg})$