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JEE Main & Advanced Sample Paper JEE Main Sample Paper-1

  • question_answer
    The decomposition of \[{{N}_{2}}O\]into \[{{N}_{2}}\] and O in the presence of gaseous argon follows second order kinetics with \[k=(5.0\times {{10}^{11}}L\,mo{{l}^{-1}}{{s}^{-1}}){{e}^{-29000k/T}}\] Activation energy of the reaction is

    A) \[\text{121}\,\text{kJ}\,\text{mo}{{\text{l}}^{\text{-1}}}\]                         

    B) \[241\,\text{kJ}\,\text{mo}{{\text{l}}^{\text{-1}}}\]

    C) \[201\,\text{kJ}\,\text{mo}{{\text{l}}^{\text{-1}}}\]                       

    D)  None of these

    Correct Answer: B

    Solution :

     On comparing the equation of k with \[k=A{{e}^{-Ea/RT}}\] \[{{E}_{a}}/RT=29000k/T\] \[{{E}_{a}}(29000k)R\] \[=241\,\text{kJ}\,\text{mo}{{\text{l}}^{-1}}\]


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