JEE Main & Advanced Chemistry Chemical Kinetics / रासायनिक बलगतिकी Question Bank Rate law and Rate Constant

  • question_answer
    Which one of the following formula represents a first order reaction                                       [MP PMT 1999]

    A)                 \[K=\frac{x}{t}\]              

    B)                 \[K=\frac{1}{2t}\left[ \frac{1}{{{(a-x)}^{2}}}-\frac{1}{{{a}^{2}}} \right]\]

    C)                 \[K=\frac{2.303}{t}{{\log }_{10}}\frac{a}{(a-x)}\]               

    D)                 \[K=\frac{1}{t}\,\frac{x}{a(a-x)}\]

    Correct Answer: C

    Solution :

               For 1st order reaction                                 \[K=\frac{2.303}{t}{{\log }_{10}}\frac{a}{(a-x)}\]


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