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  1. In an irreversible process

    2. A.

     Tds = dE - dW = 0
    B.

     DE - dW - Tds = 0
    C.

     Tds - dE + dW< 0
    D.

     Tds - dT + dW< 0

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    Answer : Option C

    Explanation :

    From second law of thermodynamics :
    TdS⩾δQ⇒TdS⩾dU+δW
    For an irreversible process TdS−dU−δW>0
    And for an reversible process TdS−dU−δW=0

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