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Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoKTGMedium2 minQB

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A diatomic gas follows equation $P V^{m} =$ constant, during a process. What should be the value of m such that its molar heat capacity during process = R

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Answer:

Solution:

For $P V^{m} =$ constant, $C = C_{V} + \frac{R}{1 - m}$ . For a diatomic gas $C_{V} = \frac{5 R}{2}$ . Setting $C = R$ : $\frac{R}{1 - m} = - \frac{3 R}{2} \Rightarrow 1 - m = - \frac{2}{3} \Rightarrow m = \frac{5}{3}$ .

Stream:JEESubject:PhysicsTopic:Heat & ThermoSubtopic:KTG

⏱ 2mℹ️ Source: QB

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