You build a beat engine that takes 1.00 mol of an ideal diatomic gas through the cycle shown in Fig. 20.25.
(a) Show that segment ab is an isothermal compression.
(b) During which segment(s) of the cycle is heat absorbed by the gas? During which segment(s) is heat rejected? How do you know?
(c) Calculate the temperature at points a, b, and c.
(d) Calculate the net heat exchanged with the surroundings and the net work done by the engine in one cycle.
(e) Calculate the thermal efficiency of the engine.

p (Pa) 4.0 10 2.0 10 V(m) 0.005 0.010