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NEET Chemistry Chemical Kinetics / रासायनिक बलगतिकी Question Bank Self Evaluation Test - Chemical Kinetics

  • question_answer
    For the first order reaction \[A\xrightarrow{{}}B+C\] is carried out at\[27{}^\circ C\]. If \[3.8\times {{10}^{-16}}\] % of the reactant molecules exists in the activated state, the \[{{E}_{4}}\](activation energy) of the reaction is:

    A) 12 kJ/mol         

    B) 831.4 kJ/mol

    C) 100 kJ/mol        

    D) 88.57 kJ/mol

    Correct Answer: C

    Solution :

    [c] \[{{e}^{-\frac{{{E}_{a}}}{RT}}}=3.8\times -\frac{{{10}^{-16}}}{100}\] \[-\frac{{{E}_{a}}}{RT}=\ln \,3.8\times {{10}^{-18}}\text{ }{{E}_{a}}=100kJ/mol\]


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