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

  • question_answer
    Half life period of a first order reaction is 138.6 minutes. The velocity constant of the reaction is

    A)                 \[0.05\,{{\min }^{-1}}\]

    B)                 \[0.00005\,{{\min }^{-1}}\]

    C)                 \[0.005\,{{\min }^{-1}}\]              

    D)                 \[200\,{{\min }^{-1}}\]

    Correct Answer: C

    Solution :

                    \[K=\frac{0.693}{{{t}_{1/2}}},\,\,K=\frac{0.693}{138.6\,\,\min }=0.005\,\,{{\min }^{-1}}\]


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