JEE Physics · Medium

Kinetic Theory and Thermodynamics: Specific Heat MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

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Specific HeatMediumQuestion 31047

Question

For a diatomic ideal gas, ratio γ = Cp/Cv is:
  1. A
    5/3
  2. B
    7/5
    Correct
  3. C
    4/3
  4. D
    3/2

Correct answer

7/5

Explanation

Diatomic: Cv = (5/2)R, Cp = (7/2)R. γ = Cp/Cv = 7/5 = 1.4.