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Question 30860
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Elasticity, Thermal Expansion, Calorimetry and Heat Transfer: Specific Heat MCQ

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Specific HeatHardQuestion 30860

Question

Ratio of specific heats of a diatomic ideal gas (Cp/Cv) is:
  1. A
    1
  2. B
    1.4
    Correct
  3. C
    1.67
  4. D
    2

Correct answer

1.4

Explanation

For diatomic gas: f = 5 degrees of freedom, Cv = 5R/2, Cp = 7R/2, γ = Cp/Cv = 7/5 = 1.4.

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