Homework Statement
P=RT/(v-b) - a/(T(V+c)^2)
Homework Equations
u2-u1= Integral ( Cv dT) + Integral ( T * (dP/dT)v - P) dV
The Attempt at a Solution
I've differentiated P with respect to T to get R/(v-b)+a/(T^2(V+C)^2 and plugged the relevants back into the equation for...