JEE Advanced 2009 Physics question

Physics Kinetic Theory of Gases JEE Advanced 2009

and denote the molar specific heat capacities of a gas at constant volume and constant pressure, respectively. Then

(A) is larger for a diatomic ideal gas than for a monoatomic ideal gas
(B) is larger for a diatomic ideal gas than for a monoatomic ideal gasCorrect
(C) is larger for a diatomic ideal gas than for a monoatomic ideal gas
(D) is larger for a diatomic ideal gas than for a monoatomic ideal gasCorrect

Answer: (B),(D)

Solution

Monoatomic: , ; diatomic: , . (A) for both:

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Question ID VK-037722