A condensible vapor has a molar entropy s = so+R In[C(v -

b) (u+ (a/v))/2], where C and so are constants.

(a) Compute the equation of state.

(b) Compute the molar heat capacities,

c, and cp.

(c) Compute the latent heat between liquid and vapor phases at temperature T in terms of the temperature T, the gas constant R, and the liquid and gas molar volumes v, and vg. How can you find explicit values of vi and v, if you need to?