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QJEEM21Ph3ce8: JEE Main 2021 Physics - Class 11 JEEM21Ph3ce8 Solution: A polyatomic ideal gas has 24 vibrational modes. What is the…

A polyatomic ideal gas has 24 vibrational modes. What is the value of γ\gamma ?

Multiple Choice Options

  • A 1.37
  • B 1.3
  • C 1.03
  • D 10.3

Step-by-Step Verified Solution

f = 3T + 3R + 24V

= 30

γ\gamma = 1 + 2f{2 \over f}

γ\gamma = 1 + 230{2 \over 30}

= 1.066

Nearest Ans. = 1.03

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