Physics-
General
Easy
Question
Three processes compose a thermodynamics cycle shown in the PV diagram. Process 1
2 takes place at constant temperature. Process 23 takes place at constant volume, and process 31 is adiabatic. During the complete cycle, the total amount of work done is 10 J. During process 23, the internal energy decrease by 20J and during process 31, 20 J of work is done on the system. How much heat is added to the system during process 12?
- 0
- 10 J
- 20 J
- 30 J
The correct answer is: 30 J
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