Air is contained in the cylinder of Fig. 3.48. The air is heated until the frictionless piston

Question:

Air is contained in the cylinder of Fig. 3.48. The air is heated until the frictionless piston is raised 40 cm above the stops. At what temperature does the piston just leave the stops? Determine the final temperature, the heat transfer, and the work done by the air on the piston. Assume constant specific heats.
Figure 3.48