Question

# An ideal gas is taken through the cycle, as shown in the figure. If the net heat supplied to the gas in the cycle is 5J, the work done by the gas in the process $$C \to A$$ is

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

Solution

## The correct option is A $$-5 J$$$$\textbf{Solution}:$$For cyclic process, $$Q_{cyclic} = W_{AB}+W_{BC}+W_{CA} =10J+0+W_{CA}=5J$$\implies W_{CA}=-5J\textbf{Hence A is the correct option}:Physics

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