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Statement-1 : When an ideal gas is freel...

Statement-1 : When an ideal gas is freely expanded change in internal energy of gas is zero, where as when real gas is expanded freely it's internal energy decreases.
Statement-2 : There is no intermolecular force of attraction in ideal gas.

A

Statement-1 is True, Statement-2 is True, Statement-2 is a correct explantion for Statement-1

B

Statement-1 is True, Statement-2 is True, Statement-2 is NOT a correct explantion for Statement-1

C

Statement-1 is True, Statement-2 is False

D

Statement-1 is False, Statement-2 is True.

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Knowledge Check

  • If an ideal gas is isothermally expanded its internal energy will

    A
    increase
    B
    decrease
    C
    remains same
    D
    decrease or increase depending on nature of the gas

  • If an ideal gas is isothermally expanded ,its internal energy will

    A
    increase
    B
    decrease
    C
    remain the same
    D
    none of these

  • Change in internal energy in an isothermal process for ideal gas is

    A
    Zero
    B
    (+) ve
    C
    (-) ve
    D
    Cannot be predicted

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