dh du Cp dT + 10-T at (). ] -P dP (6-22) Develop a general expression for (Oh/v)T in terms of P, T, and v only this will include partial derivatives). Hint: Your starting point is Eq. 6-22, but this has independent variables dT and dP. You will need to use P=P(T,v) to get the form h=h(T,v) needed to evaluate the derivative. Note that the cyclic relation can be used to reduce the number of derivatives appearing in your expression. 2