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

  • question_answer
    The half life of a first order reaction is \[69.35\,\sec \]. The value of the rate constant of the reaction is  [CBSE PMT 1990]

    A)                 \[1.0\,{{s}^{-1}}\]            

    B)                 \[0.1\,{{s}^{-1}}\]

    C)                 \[0.01\,{{s}^{-1}}\]         

    D)                 \[0.001\,{{s}^{-1}}\]

    Correct Answer: C

    Solution :

                    \[k=\frac{0.693}{{{t}_{1/2}}}=\frac{0.693}{69.35}=9.99\times {{10}^{-3}}=0.01\,{{s}^{-1}}\]


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