Clausius clapeyron and heat capacity

[B4cklfip]

Homework Statement

Consider a substance whose vapor is at equilibrium at temperature T with it's liquid phase. Calculate the heat capacity C = dQ / dT as a function of n, c_p(T) and q. Use Maxwell relationships and the clausius clapeyron equation and treat the vapor as an ideal gas.
How can I go on?

Relevant Equations

dp/dT=q/(T(v_g-v_f))

 

[Chestermiller]

I'm guessing that what they mean by C is T times the left side of your final equation. If it isn't that, then I have no idea what they're getting at.