While shadowing a plastic surgeon Kaila learns that lasers are the next big thing in "holistic" surgery, so she volunteers in a Physics Lab at UCR to learn more. But before they trust her with lasers, however, they have Kaila design the gas power cycle that will power the laser. In Kaila's power cycle, air is initially at a pressure of 420 kPa and a volume of 3 m³. In the first step, the air undergoes isochoric compression to a pressure of 750 kPa. In the second step, it undergoes isobaric expansion to a volume of 7 m³. In the third step, the air undergoes isothermal expansion until its pressure drops to 420 kPa. In the fourth and final step, the air undergoes isobaric contraction to a volume of 3 m³. What is the net heat flow, per cycle, for Kaila's cycle? [Hint: Draw a PV diagram of the process. It will help.] 1,738 kJ 860 kJ 3,173 kJ 2,054 kJ
