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One mole of an ideal gas at pressure P0 and temperature T_{0} is expanded isothermally to twice its volume and then compressed at constant pressure to (V_{0}/2) and the gas is brought back to original state by a process in whichP\propto V  (Pressure is directly proportional to volume). The correct representation of process is

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Process AB is isothermal expansion, BC is isobaric compression

In process CA   P\propto \frac{nRT}{P}  or   P^{2}\propto T

So the graph would be

                           

Posted by

himanshu.meshram

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