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MHT CET 2021 (22 Sep, Shift 2) · Thermodynamic Processes

Thermodynamic Processes question from MHT CET 2021 (22 Sep, Shift 2)

Q181MHT CET 2021 · 22 SEP · SHIFT 2Medium

Thermodynamic Processes

The change in internal energy of the mass of a gas, when the volume changes from ' $V$ ' to ' $2V$ ' at constant pressure 'P' is ( $\gamma =$ Ratio of Cp to Cv)

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Answer: (a)

$\Delta U = nC_v\Delta T = \frac{nR\Delta T}{\gamma - 1}$
At constant $P$ : $nR\Delta T = P(2V - V) = PV$ .
So the answer is (a) $\frac{PV}{\gamma - 1}$ .

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