B is not -4.2 or -9.2

A piston-cylinder assembly contains propane, initially at 27C,1 bar, and a volume of 0.15m3. The propane undergoes a process to a final pressure of 4 bar, during which the pressure-volume relationship is pV1.1= constant. For the propane, evaluate the work and heat transfer, each in kJ. Kinetic and potential energy effects can be ignored. PartA Your answer is correct. For the propane, evaluate the work, in kJ