Air is the working fluid in a thermodynamic cycle for the production of power. The air undergoes the processes listed below in a reciprocating piston–cylinder assembly.

State 1–State 2: Isothermal compression from an initial volume (0.0008 m³) to a volume one-eighth of the initial volume. The initial pressure and temperature are 100 kPa and 300 K, respectively.

State 2–State 3: Constant-volume heat addition until the temperature reaches 1200 K (= T₃).

State 3–State 4: Constant-pressure expansion until the volume reaches three eighths of the initial (state-1) volume.

State 4–State 5: Isothermal expansion until the volume reaches the initial (state-1) volume.

State 5–State 1: Constant-volume heat rejection to return to the initial state (state-1).

A. Sketch the cycle in pressure–volume coordinates, label the state points (1, 2, etc.), and shade the area representing the work.

B. Determine the net work of the cycle.