RAJASTHAN PMT Rajasthan - PMT Solved Paper-2011

  • question_answer
    For the reaction                 \[A+2B\xrightarrow[{}]{{}}\]Products, the differential rate equation is

    A) \[-\frac{1}{2}\frac{d[A]}{dt}=\frac{-d[B]}{dt}=k[A]{{[B]}^{2}}\]

    B) \[\frac{1}{2}-\frac{d[A]}{dt}=\frac{d[B]}{dt}=k[A]{{[B]}^{2}}\]

    C) \[\frac{-d[A]}{dt}=-\frac{1}{2}\frac{d[B]}{dt}=k[A]{{[B]}^{2}}\]

    D) \[\frac{d[A]}{dt}=\frac{1}{2}\frac{d[B]}{dt}=k[A]{{[B]}^{2}}\]

    Correct Answer: C

    Solution :

    For the reaction                 \[A+2B\xrightarrow{{}}\]products The differential rate equation is                 Rate\[=\frac{-d[A]}{dt}=-\frac{1}{2}\frac{d[B]}{dt}\]                 \[=k[A][B]2\] where,\[k=\]rate constant.


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