JEE Main & Advanced Chemistry Thermodynamics / रासायनिक उष्मागतिकी Question Bank 2nd and 3rd law of thermodynamics and Entropy

  • question_answer
    The unit of entropy is     [CBSE PMT 2002]

    A)                 \[J\,mo{{l}^{-1}}\]          

    B)                 \[JK\,mo{{l}^{-1}}\]

    C)                 \[J\,mo{{l}^{-1}}{{K}^{-1}}\]       

    D)                 \[{{J}^{-1}}{{K}^{-1}}mo{{l}^{1}}\]

    Correct Answer: C

    Solution :

              \[\Delta S=\frac{{{q}_{rev}}}{T}\]\[\therefore \]unit of S is \[J{{K}^{-1}}mo{{l}^{-1}}\].


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