JEE Main & Advanced Physics Kinetic Theory of Gases Question Bank Self Evaluation Test - Kinetic Theory

  • question_answer
    A polyatomic gas with n degrees of freedom has a mean energy per molecule given by

    A) \[\frac{nkT}{N}\]

    B) \[\frac{nkT}{2N}\]

    C) \[\frac{nkT}{2}\]           

    D) \[\frac{3kT}{2}\]

    Correct Answer: C

    Solution :

    [c] According to law of equipartition of energy, the energy per degree of freedom is \[\frac{1}{2}kT.\] For a polyatomic gas with n degrees of freedom, the mean energy per molecule \[=\frac{1}{2}nkT\]


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