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VMMC VMMC Medical Solved Paper-2009

  • question_answer
    For a first order reaction \[\text{A}\xrightarrow{{}}\] Products, the half-life is 100 s. The rate constant of the reaction is

    A) \[6.9\times {{10}^{-2}}{{s}^{-1}}\]           

    B) \[6.93\times {{10}^{-4}}{{s}^{-1}}\]

    C)        \[6.93\times {{10}^{-3\text{ }}}{{s}^{-1}}\]

    D)        \[6.93\times {{10}^{-1\text{ }}}{{s}^{-1}}\]

    Correct Answer: C

    Solution :

    For first order reaction, Rate constant, \[k=\frac{0.693}{{{t}_{1/2}}}\]                                 \[=\frac{0.693}{100}\]                 \[=6.93\times {{10}^{-3}}{{s}^{-1}}\]


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