Doubt from thermodynamics

@Shwetanshu_2018. Pls try it. Answer is 130.

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@Shwetanshu_2018 I just have a very minor doubt may be because I am not clear in my concept. Work done in path AB= Work done in path ABC. We consider workdone as are enclosed by curve. But area enclosed by AB is not equal to ABC

Isochoric process does no work as well as area by the curves on x axis is same

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Area under ABC = area under AB

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I was thinking like this is area enclosed which led to lot of confusion. Thanks @Shwetanshu_2018 and @Bhuvanitha_2020

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That complete shaded area is the area enclosed by Abca

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