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AMU Medical AMU Solved Paper-2012

  • question_answer
    An ideal gas undergoes a reversible isothermal expansion from a state i to \[f\]. The change in entropy \[\Delta S\,(i\to f)\]) is

    A)  0

    B)  > 0

    C)  < 0

    D)                  not defined for the process

    Correct Answer: A

    Solution :

                     Change in entropy \[dS=\frac{dQ}{T}\] Entropy remains constant for reversible process dS = 0


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