# A thermodynamic system is taken through the cycle ABCD as shown in the figure. Heat rejected by the gas during the cycle is

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A thermodynamic system is taken through the cycle ABCD as shown in the figure. Heat rejected by the gas during the cycle is

A. PV
B. 2PV
C. 4PV
D. 1/2 PV

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From the first law of thermodynamics
DeltaQ = DeltaU + DeltaW
For cycle process DeltaU=0
Hence, Q = W
Work done W = area under p-V disgram
implies Q = -2PV.