Out of the following relations which one is true in the case of an adiabatic process, where γ = Cp/Cv? (a) P(1-γ)Tγ = constant (b) PγT(1-γ) = constant (c) PTγ = constant (d) PγT = constant

Answer: (a). Adiabatic: PVγ = constant and V = nRT/P. P(T/P)γ = constant ⇒ P1-γTγ = constant So the answer is (a).

Out of the following relations which one is true in the case of an… | MHT CET 2026 (13 May, Shift 1)

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Thermodynamic Processes

Out of the following relations which one is true in the case of an adiabatic process, where $\gamma = C_p/C_v$ ?

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Answer: (a)

Adiabatic: $PV^{\gamma} =$ constant and $V = \frac{nRT}{P}$ .
$P\left(\frac{T}{P}\right)^{\gamma} =$ constant $\Rightarrow P^{1-\gamma}T^{\gamma} =$ constant
So the answer is (a).

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