1. The problem statement, all variables and given/known data attached as pdf (problem 1) (part b) 2. Relevant equations w=p2v2-p1v1 / n-1 w=mR(T2-T1) / 1-n 3. The attempt at a solution I was able to determine the pressure and temperatures at all points, but to find the work i appear to need the volume, I also looked at w=h2-h1 but im not sure how that would work with air. I appear to be overlooking something vital which woudl help me move on and would be very greatful if someone could point me towards it.