- #1
dingo_d
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Homework Statement
I'm doing some thermodynamics and I didn't quite get one thing:
I have a function: [tex]U=U(T,\ V(T,p))[/tex] and I need to find the expression:
[tex]\left(\frac{\partial U}{\partial T}\right)_p[/tex]
The Attempt at a Solution
Now what I found in the book and what Mathematica gave me is:
[tex]\left(\frac{\partial U}{\partial T}\right)_p=\left(\frac{\partial U}{\partial T}\right)_V+\left(\frac{\partial U}{\partial V}\right)_T\left(\frac{\partial V}{\partial T}\right)_p[/tex]
But I can't see why that is :\ I tried looking with the formulas for mixed partial derivatives but I must be missing sth out :\
Can someone point me in the right direction?