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JEE Main202117 Mar 2021Evening ShiftPhysicsKinetic Theory of GasesActual

If one mole of the polyatomic gas is having two vibrational modes and β is the ratio of molar specific heats for polyatomic gas β = C P C v then the value of β is :

Options

  1. A1 . 02
  2. B1 . 2
  3. C1 . 25
  4. D1 . 35

Correct answer

B. 1 . 2

Step-by-step solution

f = 4 + 3 + 3 = 10 , assuming non-linear, β = C p C v = 1 + 2 f = 12 10 = 1 . 2

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