Three moles of argon gas (assumed to be an ideal gas) originally at a pressure of 1.50 X 104 Pa and a volume of 0.0280 m3 are first heated and expanded at constant pressure to a volume of 0.0435 m3, then heated at constant volume until the pressure reaches 3.50 X 104 Pa, then cooled and compressed at constant pressure until the volume is again 0.0280 m3, and finally cooled at constant volume until the pressure drops to its original value of
1.50 X 104 Pa.
(a) Draw Ute pV-diagram for this cycle.
(b) Calculate the total work done by (or on) the gas during the cycle.
(c) Calculate the net heat exchanged with the surroundings. Does the gas gain or lose heat overall?