For a diatomic gas, if γ₁ = C_P/C_V for rigid molecules and γ₂ =… | JEE Main 2025 Physics PYQ

MCQEasyJEE Main 2025 · 22 January, Shift 2Degrees of Freedom & Law of Equipartition

For a diatomic gas, if $\gamma_1 = \frac{C_P}{C_V}$ for rigid molecules and $\gamma_2 = \frac{C_P}{C_V}$ for another diatomic molecules, but also having vibrational modes. Then, which one of the following options is correct? (where $C_P$ and $C_V$ are specific heats of the gas at constant pressure and volume)

A
$\gamma_2 = \gamma_1$
B
$\gamma_2 > \gamma_1$
C
$2\gamma_2 = \gamma_1$
D
$\gamma_2 < \gamma_1$

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