A 0.0065-kg mass of air expands in a piston–cylinder assembly following a constant-pressure path with a work output of 1.3 kJ. The initial specific volume of the air is 0.25 m³/kg. The final volume is three times that of the initial volume.

A. Sketch the process in P–V and T–V coordinates.

B. Determine the gas pressure during the process.

C. Determine the initial and final temperatures of the air.