Deriving an Thermodynamic Equation of State

AI Thread Summary
The discussion focuses on deriving the thermodynamic equation of state, specifically the relationship between internal energy (U), volume (V), temperature (T), and pressure (p). The original poster seeks assistance in finding the derivation but is directed to attempt it independently, with offers of guidance on specific concepts like the definitions of U and enthalpy (H). After some reflection, the poster successfully finds the solution on their own and expresses gratitude for the support. The conversation emphasizes the importance of understanding the underlying principles in thermodynamics rather than simply seeking answers.
Duy028
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Homework Statement



Derive the following:

\left(\frac{\partial U}{\partial V}\right)_{T}=T\left(\frac{\partial p}{\partial T}\right)_{V}-p

Homework Equations



Use the partner equation:

\left(\frac{\partial H}{\partial p}\right)_{T}=-T\left(\frac{\partial V}{\partial T}\right)_{p}+V

The Attempt at a Solution



I just need help finding the derivation. All the links I've searched for so far lead me to other derivations that use these equations to derive other ones. Obviously, it's hard to google things with partial derivatives in it. Any help would be useful. Thanks!
 
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Hi Duy028, welcome to PF!:smile:

Duy028 said:
I just need help finding the derivation. All the links I've searched for so far lead me to other derivations that use these equations to derive other ones. Obviously, it's hard to google things with partial derivatives in it. Any help would be useful. Thanks!

We don't do your homework for you here, and we don't post links to solutions for your homework either.

Try the derivation yourself, and we'll help you through it where you get stuck. As a starting point, how is U defined (1st Law)? How is H defined?
 
Thanks anyways, but I slept on it and woke up having a clearer mind and found the solution. I'll be sure to be back if I have other problems and will remember to post my attempts.
 
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