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During an adiabatic expansion, a gas obe...

During an adiabatic expansion, a gas obeys `VT^(3) =` constant. The gas must be

A

Monoatomic

B

Diatomic

C

Polyatomic

D

Any of above

Text Solution

Verified by Experts

`VT^(3) =` constant,
Also `V^(gamma-1)T =` constant for adiabatic expansion.
`V.T^((1)/(gamma-1)) =` constant or `(1)/(gamma -1) = 3`
`gamma = (4)/(3)`, i.e., poyatomic gas.
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Knowledge Check

  • 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

  • During adiabatic expansion of an ideal gas :-

    A
    q = 0, w = 0
    B
    `q=0,w=Delta E `
    C
    `qne0,w=0`
    D
    `q=DeltaE,w=0`

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