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Questions  

P – T curve of a cyclic process is shown. If number of moles of the gas are n, the work done by the gas in the given process is

a
nRT1+T3−T4+T2
b
nRT1−T3−T4+T2
c
nRT1+T3+T4−T2
d
nRT1+T3−T4−T2

detailed solution

Correct option is D

Work done along AB and CD  is zero. Paths BC and DA are isobaric.Hence W=WBC+WPAW=nRT1+T3−T4−T2

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