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The following four gases are at the same...

The following four gases are at the same temperature. In which gas do the molecules have the maximum root mean square speed?

A

Hydrogen

B

Oxygen

C

Nitrogen

D

Carbon dioxide

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Knowledge Check

  • At what temperature will hydrogen molecules have the same root mean square speed as nitrogen molecules at 27^(@)C ?

    A
    `21.43^(@)C`
    B
    `42.86K`
    C
    `21.43K`
    D
    `42.86^(@)C`

  • The root mean square speed of gas molecules

    A
    is same for all gases at the same temperature
    B
    depends on the mass of the gas molecule and its temperature
    C
    is independent of the density and pressure of the gas
    D
    depends only on the temperature and volume of the gas

  • Assertion : Different gases at the same conditions of temperature and pressure have same root mean square speed Reason : Average K.E. of a gas is directly proportional to temperature in kelvin

    A
    Both A and R are true and R is the correct explanation of A
    B
    Both A and R are true but R is not a correct explanation of A
    C
    A is true but R is false
    D
    A is false but R is true

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    The root mean square speed of the molecules of a diatomic gas is v. When the temperature is doubled, the molecules dissociates into two atoms. The new root mean square speed of the atom is

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    At what temperature will be the oxygen molecules have the same root mean square root mean square speed as hydrogen molecules at 300 K ?

    Root mean square speed of an ideal gas at 300 K is 500 m/s. Temperature is increased four times then root mean square speed will become

    Root mean square speed of an ideal gas at 300 K is 500 m/s. Temperature is increased four times then root mean square speed will become

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