The expression of mean square speed is

  1. A

    3RT/M

  2. B

    3kBT/m

  3. C

    2RT/M

  4. D

    3kBT/m

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    Solution:

    The expression of mean square speed is 3kBT/m

    The term "RMS" refers to the root mean square velocity. This represents the square root of the sum of all the squares representing the individual particle speeds in a gas.

    The standard formula for the mean square speed is,

    3kBT/m

    Where,

    m is the molar mass of the substance, expressed in kilograms

    T is the temperature

    KB is the kinetic energy of the molecule

    Hence the correct option is D

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