(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Calculate the Gibbs free energy for a van der Waals gas (up to an integration constant), assuming a fixed amount of material and temperature.

2. Relevant equations

[tex]P = \frac{NkT}{V-Nb} - \frac{aN^2}{V^2}[/tex]

dG = -SdT + VdP + udN (where u is the chemical potential)

3. The attempt at a solution

I am unsure of where to begin. I've tried looking at supplementary materials but everyone says stuff like "finding other free energies leads to 3rd order polynomials". If anyone can start me off I'd be grateful! Thanks!:!!)

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Gibbs Free Energy of Van Der Waals Gas

**Physics Forums | Science Articles, Homework Help, Discussion**