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Isothermal reversible expansion

  • Thread starter winterwind
  • Start date
29
0
1. Homework Statement
Calculate the work done during the isothermal reversible expansion of a gas that satisfies the virial equation of state.

2. Homework Equations
Virial equation of state: pVm = RT(1+B/Vm + C/Vm + ...)

Isothermal reversible expansion: w = -nRT ln(Vf/Vi)

3. The Attempt at a Solution
I tried to substitute n with the expansion, but that is not correct. Any ideas?

Thanks!
 
277
1
The expression you're using for isothermal reversible expansion is only valid for an ideal gas.

Remember dw=-P dV.

Divide both sides of the virial equation of state by Vm and remember Vm=V/n, then you'll need to use calculus.
 

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