Question

# An ideal gas is taken through the cycle $$A\longrightarrow B\longrightarrow C\longrightarrow A$$, as shown in the figure. If the net heat supplied to the gas in the is 55J the work done by the gas in the process $$C\longrightarrow A$$ is

A
-5 J
B
-10 J
C
-15 J
D
-20 J

Solution

## The correct option is B -5 JWork done in cyclic process is area under the curve $$=10 J$$$$5 = W_{CA} + 10$$$$W_{CA} = -5 J$$Physics

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