This seems like it should be really basic, so it's annoying me that I can't figure it out. 1. The problem statement, all variables and given/known data One cylinder in the diesel engine of a truck has an initial volume of 600 cm^3. Air is admitted to the cylinder at 30 degrees celsius and a pressure of 1.0 atm. The piston rod then does 400 J of work to rapidly compress the air. What are its final temperature and volume? The answers are 1100 K and 23.9 cm^3 2. Relevant equations In an isobaric process, W = -p delta V In an isobaric process, V_1 over T_1 = V_2 over T_2 3. The attempt at a solution W = -p delta V 400 J = - (600 cm^3 - V_final) ??? Thanks for any help.