Question: FIGURE P21.35 shows a heat engine going through one cycle. The gas is diatomic. The masses are such that when the pin is removed, in

FIGURE P21.35 shows a heat engine going through one cycle.
The gas is diatomic. The masses are such that when the pin is removed, in steps 3 and 6, the piston does not move.

Locking pin Remove 100 cm 50 cm 1.0 atm 3.0 atm 20°C 1. Start. 2. Heat to 3 atm. 3. Remove pin. Continue heating to 100 a. Draw the pV diagram for this heat engine.
b. How much work is done per cycle?
c. What is this engine€™s thermal efficiency?

Locking pin Remove 100 cm 50 cm 1.0 atm 3.0 atm 20C 1. Start. 2. Heat to 3 atm. 3. Remove pin. Continue heating to 100 cm'. 4. Insert pin. Remove mass. Add Ice Ice 5. Cool to 1.0 atm. 6. Remove pin. Continue cooling to 50 cm. 7. Insert pin. Add mass. Start again. FIGURE P21.35

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