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JEE Main & Advanced Physics Kinetic Theory of Gases Question Bank Topic Test - Kinetic Theory Of Gases-2

  • question_answer
    The average translational kinetic energy of a hydrogen gas molecules at NTP will be [Boltzmann’s constant \[{{k}_{B}}=1.38\times {{10}^{-23}}J/K]\]          

    A) \[0.186\times {{10}^{-20}}\]Joule

    B) \[0.372\times {{10}^{-20}}\]Joule

    C) \[0.56\times {{10}^{-20}}\] Joule

    D) \[5.6\times {{10}^{-20}}\]Joule

    Correct Answer: C

    Solution :

    [c] \[{{E}_{av}}=\frac{f}{2}kT=\frac{3}{2}\times 1.38\times {{10}^{-23}}\times 273\]\[=0.56\times {{10}^{-20}}J\]


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