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MHT CET 2026 (13 May, Shift 2) · Thermodynamic Processes

Thermodynamic Processes question from MHT CET 2026 (13 May, Shift 2)

Q29MHT CET 2026 · 13 MAY · SHIFT 2Medium

Thermodynamic Processes

During an adiabatic process, the pressure of a gas is found to be proportional to the cube of its temperature. The ratio Cp/CvC_p/C_v for the gas is

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Answer: (d)

  1. Adiabatic: P1−γTγ=P^{1-\gamma}T^{\gamma} = constant, so P∝Tγγ−1P \propto T^{\frac{\gamma}{\gamma - 1}}.
  2. γγ−1=3⇒γ=3γ−3⇒γ=32\frac{\gamma}{\gamma - 1} = 3 \Rightarrow \gamma = 3\gamma - 3 \Rightarrow \gamma = \frac{3}{2}
  3. So the answer is (d) 32\frac{3}{2}.
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