Physics-
General
Easy
Question
Three processes form a thermodynamic cycle as shown on P-V diagram for an ideal gas. Process 1 
2 takes place at constant temperature (300K). Process 
takes place at constant volume. During this process 40J of heat leaves the system. Process 
is adiabatic and temperature T3 is 275K. Work done by the gas during the process 3 1 is
- –40J
- –20J
- +40J
- +20J
The correct answer is: –40J
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