Recent content by Negan57

It asks for the work done ON the gas. The reasons its W = P(Vf-Vi) and not W = -P(Vf-Vi) is because its work ON gas not BY the gas. In U = Q + W, W is work on gas presumably, though I'm not 100% sure.

Homework Statement Pt. A) A gas is compressed at a constant pressure of 0.632 atm from 7.11 L to 5 L. In the process, 440 J of energy leaves the gas by heat. What is the work done on the gas? Answer in units of J Pt. B) What is the change in its internal energy? Answer in units of J...