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MHT CET 2024 (10 May, Shift 1) · Thermodynamic Processes

Thermodynamic Processes question from MHT CET 2024 (10 May, Shift 1)

Q124MHT CET 2024 · 10 MAY · SHIFT 1Medium

Thermodynamic Processes

Initial pressure and volume of a gas are ' P ' and ' $V$ ' respectively. First its volume is expanded to ' 4 V ' by isothermal process and then again its volume is reduced to ' V ' by adiabatic process then its final pressure if $\left(\gamma = \frac{3}{2}\right)$

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Answer: (b)

Isothermal $V \to 4V$ : $P_1 = \frac{P}{4}$ .
Adiabatic $4V \to V$ : $P_2 = \frac{P}{4} \times 4^{3/2} = \frac{P}{4} \times 8$
$P_2 = 2P$
So the answer is (b) 2P.

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