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Ratio of gamma of a rigid diatomic gas to gamma of a monoatomic gas

The same question, asked 2 times: 12 May 2024 S1*, 13 Apr 2026 S2. Every wording below, oldest first.

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  1. Question 1

    12 May 2024 S1

    2
    Let γ1\gamma_{1} be the ratio of molar specific heat at constant pressure and molar specific heat at constant volume of a monoatomic gas and γ2\gamma_{2} be the similar ratio of diatomic gas. Considering the diatomic gas molecule as a rigid rotator, the ratio γ2γ1\frac{\gamma_{2}}{\gamma_{1}} is

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  2. Question 2

    13 Apr 2026 S2

    118
    Let γ1\gamma_1 be the ratio of molar specific heat at constant pressure and molar specific heat at constant volume of a mono-atomic gas and γ2\gamma_2 be the similar ratio of diatomic gas. Considering the diatomic gas molecule as a rigid rotator, the ratio, γ1/γ2\gamma_1/\gamma_2 is

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