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What is the total internal energy posses...

What is the total internal energy possessed by molecules of an ideal gas?

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The correct Answer is:
Since in an ideal gas, there is no molecular attraction, the potential energy of the molecules is zero. Therefore, internal energy of an ideal gas is only kinetic in nature.
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A tank used for filling helium balloons has a volume of 0 .3 m^3 and contains (2.0) mol of helium gas at 20 .0^@ C . Assuming that the helium behaves like an ideal gas. (a) What is the total translational kinetic energy of the molecules of the gas ? (b) What is the average kinetic energy per molecule ?

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Knowledge Check

  • The molecules of an ideal gas possesses

    A
    kinetic and potential energy
    B
    only kinetic energy
    C
    only potential energy
    D
    only gravitational potential energy

  • The mean energy of a molecule of an ideal gas is

    A
    `1/2` KT
    B
    2 KT
    C
    KT
    D
    `3/2` KT

  • The internal energy of a gram-molecules of an ideal gas depends upon

    A
    pressure alone
    B
    volume alone
    C
    temperature alone
    D
    both pressure and temperature

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    The total internal energy of one mole of rigid diatomic gas is

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