Solving Problem 3 in MIT's Statistical Physics Course

[ehrenfest]

[SOLVED] statistical physics

Homework Statement

http://ocw.mit.edu/NR/rdonlyres/Physics/8-044Spring-2004/AC9B128C-9358-4177-BFE6-A142E0FD897B/0/ps4.pdf
I am working on Problem 3.
So I want to calculate the integral of dW along each of those paths. But how can I relate dW to dV? dW is equal to F dot dl but I don't really know F or dl here?

Homework Equations

The Attempt at a Solution

 

[G01]

Another expression for work is the following:

$$\int_{V_1}^{V_2} PdV$$

Try to start from this expression for this problem.