1. The problem statement, all variables and given/known data Everything is in attached file. Given the PV diagram with P2, P1, V2, V1. 2. Relevant equations PV=nRT W=nRT*ln(Vf/Vi) 3. The attempt at a solution Attempt in attached file is very organized. I showed 2 of my peers and they are getting the same answer as well. Anybody have any ideas? It makes sense that the two isothermal processes should cancel when connected by isobars. Isobars simply shift the same function along the X-axis, yielding the same area under both curves... or at least so i think. It definitely doesn't make sense why the two isobaric processes mathematically cancel. They shouldn't. This is very strange and is really stumping my friends and I.