The P - V diagram shows seven curved pat...

The P - V diagram shows seven curved paths (connected by vertical paths) that can be followed by a gas. Which two of them should be parts of a closed cycle if the net work done by the gas is to be at its maximum value

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The correct Answer is:

Net work done by the gas is to be at its maximum value will be for curve cg.
Also, net work done on the gas is to be at its maximum will be for curve af.

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