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## Homework Statement

Taken from Concepts in thermal Physics:

## Homework Equations

## The Attempt at a Solution

Shouldn't the van der waal's equation be:

[tex]p = \frac{RT}{V_m -b} - \frac{a}{V_m^2}[/tex]

[tex]pV_m = \frac{VRT}{V_m -b} - \frac{a}{V_m}[/tex]