I have a problem where I am given an equation of state pV=RT+(bRT-a)/V and asked to find the work produced in the isothermal, reversible expansion from V1 to V2.(adsbygoogle = window.adsbygoogle || []).push({});

I thought I would want to use W=-integral(nRT/V)dV, but that is apparently only for ideal gases, and this problem concerns a non-ideal gas, according to my professor.

1) How do I know by looking at the problem that this doesn't concern an ideal gas. (the equation given does look like the van der Waals equation...)

2) Since it isn't an ideal gas, what equation can I use? w=-integral(Pext*dV)?

.

Any ideas? I'm feeling really lost here conceptually

**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: Physical Chem, work of a non-ideal gas

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