1 kg of propane is contained in a piston - cylinder assembly at a constant pressure of .20 MPA heat transfer slowly to the propane and the volume of the propane is increase from .025m^3 to .030m^3 the piston is free floating with negligible weight friction between the piston and cylinder is negligble the propane experience no significant kinetic and potential energy effect determine the intial and final temperature of the propan, the work, and the heat transfer?