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  1. What happens in a reversible adiabatic expansion process?

    2. A.

     Heating takes place
    B.

     Cooling takes place
    C.

     Pressure is constant
    D.

     Temperature is constant

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    Answer : Option B

    Explanation :

    Since for an adiabatic process TVγ−1=CONSTANT     and on integration of this equation we get ln(T2T1)=−((γ−1)lnV2V1)       since for expansion process V2>V1   Hence ⇒T2<T1
    So, cooling takes place.

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