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The kinetic energy of translation of 20g...

The kinetic energy of translation of 20gm of oxygen at `47^@C` is (molecular wt. of oxygen is 32gm/mol and R=8.3 J/mol/K)

A

2490 joules

B

2490 ergs

C

830 joules

D

124.5 joules

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The correct Answer is:
A
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The kinetic energy of 1 mole of oxygen molecules in cal mol^(-1) at 27^@C

A thermally insulated vessel containing monoatomic gas is moving with a speed of 30 m/s. If the vessel suddenly stops, the increasing in gas temperature is (Molar mass of gas = 83 g/mol and R = 8.3 J / K-mol)

Knowledge Check

  • The kinetic energy in J of 1 mole of N_2 at 27^@ C is (R= 8.314 mol^(-1) k^(-1))

    A
    2494
    B
    18706
    C
    7482
    D
    3741

  • The kinetic energy of 1 mole of oxygen molecules in cal mol^(-1) at 27°C

    A
    300
    B
    600
    C
    900
    D
    800

  • The amount of heat that must be supplied to 35 g of oxgen at room temperature to raise its temperature by 80^(@) C at constant volume is (Molecular mass of oxygen is 32 and R = 8.3 J mol^(-1) K^(-1) )

    A
    2.84 kJ
    B
    1.68 kJ
    C
    1.81 kJ
    D
    2.88 kJ

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    The kinetic energy per gm mol for a diatomic gas at room temperature is

    The kinetic energy per gm mol for a diatomic gas at room temperature is

    Kinetic energy in Kj of 280 g of N_(2) at 27^(@)C is approximately (R = 8. 314 J mol ^(-1) K ^(-1))

    A thermally insulated vessel containing monatomic gas is moving with a speed of 30 m/s. If the vessel suddenly stops, the increase in gas temperature is (Molar mass of gas = 83 g/mol and R = 8.3J/K mol)

    Which one of the following is the kinetic energy of a gaseous mixture containg 3 g of hydrogen and 80 g of oxygen at temperature T(K) ?

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