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Question 31014
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Kinetic Theory and Thermodynamics: Degrees of Freedom MCQ

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Degrees of FreedomHardQuestion 31014

Question

Cv for a diatomic ideal gas is:
  1. A
    (3/2)R
  2. B
    (5/2)R
    Correct
  3. C
    (7/2)R
  4. D
    R

Correct answer

(5/2)R

Explanation

Each degree of freedom contributes R/2 to Cv. Diatomic (f=5): Cv = (5/2)R = 20.8 J/mol·K.

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