JEE Main & Advanced Sample Paper JEE Main - Mock Test - 3

  • question_answer
    If the rate of reaction is \[r=k{{[X]}^{1/3}}{{[Y]}^{2/3}}\], what is the unit of rate constant?

    A) \[mo{{l}^{1/3}}{{L}^{-2/3}}tim{{e}^{-1}}\]

    B) \[mo{{l}^{2/3}}{{L}^{1/3}}tim{{e}^{-1}}\]

    C) \[mo{{l}^{1/6}}{{L}^{-1/6}}tim{{e}^{-1}}\]

    D) \[mo{{l}^{0}}{{L}^{0}}tim{{e}^{-1}}\]

    Correct Answer: D

    Solution :

    [d]: Order of reaction \[=\frac{1}{3}+\frac{2}{3}=1\]. Unit of rate constant for 1st order reaction = time\[^{-1}\]


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