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Calculate the rms speed of air molecules at N.T.P. if density is 1.29kg`m^(-3)`

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Calculate the r.m.s velocity of nitrogen molecule at N.T.P. if the density of nitrogen is 0.001293 g cm^(_3)

Calculate r.m.s. speed of nitrogen at 0^@C ( Density of nitrogen = 1.25 kg/m^3 at N.T.P., 1 atmosphere = 1.013xx10^5 N/m^2 )

Knowledge Check

  • The rms speed of the molecules of a gas of density 4 kg m^(-3) and pressure 1.2 xx 10^5 Nm^(-2) is :

    A
    `120 ms^(-1)`
    B
    `300 ms^(-1)`
    C
    `600 ms^(-1)`
    D
    `900 ms^(-1)`

  • The K.E. per m^3 of hydrogen at N.T.P. is

    A
    `1.519xx10^5 J/m^3`
    B
    `2.519xx10^5 J/m^3`
    C
    `3.519xx10^5 J/m^3`
    D
    `4.519xx10^5 J/m^3`

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    The rms speed of hydrogen molecule is 2xx10^5 cm/s at a certain temperature. Calculate the rms speed of oxygen molecule at the same temperature. Their molecular weights are 2 and 32 respectively.

    Calculate the number of molecule present in : 1 kg oxygen

    At what temperature will Oxygen molecules have the same r.m.s. speed as Helium molecules at N.T.P. ? Molecular weight of Oxygen=32 kg/kmol and molecular weight of Helium = 4 kg/kmol.

    Calculate the number of molecules in one litre of gas at N.T.P. if mass of each molecule is 4.55xx10^(-25) kg and its R.M.S velocity at NTP is 350 m/s.

    What is the R.M.S. velocity of the molecules of a gas at N.T.P., if the density of gas at this temperature is 0.165 kg/m^3 ?

    What is the R.M.S. velocity of the molecules of a gas at N.T.P., if the density of gas at this temperature is 0.165 kg/m^3 ?

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