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  • A thermodynamic system is taken through the cycle ABCD as shown in figure. Heat rejected by the gas during the cycle is: <img alt="" src="https://cdn.entrance360.com/media/uploads/2017/10

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

Option: 1

2 PV


Option: 2

4 PV


Option: 3

\frac{1}{2}\text{PV}


Option: 4

PV


Answers (1)

best_answer

\\ \text{For given cyclic process,} \Delta U=0$ therefore, $Q = W$ \\ Also, $W =-$ area enclosed by the curve \\ $= AB \times AD$ \\ $=(2 P-P)(3 V-V)$ \\ $=-P \times 2 V$ \\ therefore, \\ Heat rejected $=2 PV$

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Rishi

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