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In adiabatic expansion DeltaU is …. (pos...

In adiabatic expansion `DeltaU` is …. (positive/negative/zero)

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The correct Answer is:
Negative
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Knowledge Check

  • In an adiabatic expansion

    A
    `/_|U=0`
    B
    `/_\U`=negative
    C
    `/_\U`=positive
    D
    `/_\W`=zero

  • In adiabatic expansion of a gas

    A
    Its pressure increases
    B
    Its density increases
    C
    Its thermal energy increases
    D
    Its thermal energy increase

  • Adiabatic expansion of a gas causes

    A
    Cooling
    B
    Heating
    C
    No temperature change
    D
    Zero work done

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    Adiabatic expansion resulting in cooling is called

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