[dm164]

Hi, I am working on some problems from my text that depend on each other and one has confused me.

Prb 1 : Asks to solve for  :delta: S (constant volume)  and Gives the formula Cv(T)  ; now I was able to solve this.
Prb 2 : Asks for me to solve for  :delta: S (constant pressure) using the data from problem 1. I am not sure how to do this. Because of problem 3.
Prb 3 : Wants me to derive  :delta: S_p =  :delta: S_v + Rln(T2/T1) which I did, and then show that the difference of problem 2 and problem 1 = Rln(T2/T1). So it would seem I can't solve prb 2 from doing :delta: S_v + Rln(T2/T1).

 Is there a way to change a formula Cv(T) to a formula of Cp(T). Or how can I solve problem 2?