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Which of the following gases has the highest value of γ (Cp/Cv)?

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Question

Which of the following gases has the highest value of γ (Cp/Cv)?

Options

  • H₂

  • N₂

  • He

  • CO₂

MCQ
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Solution

He

Explanation:

Helium is a monoatomic gas with only translational degrees of freedom. Its γ = Cp/Cv = 5/3 ≈ 1.66, which is the highest among the gases listed, as monoatomic gases have fewer ways to store energy compared to diatomic or polyatomic gases.

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