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

  • question_answer
    \[A\to B,\Delta H=10kJ\,mo{{l}^{-1}},{{E}_{a(f)}}=50kJ\,mo{{l}^{-1}}\], then \[{{E}_{a}}\] of \[B\to A\] will be

    A) \[40kJ\,mo{{l}^{-1}}\]             

    B) \[50kJ\,mo{{l}^{-1}}\]

    C) \[-50kJ\,mo{{l}^{-1}}\]            

    D) \[60kJ\,mo{{l}^{-1}}\]

    Correct Answer: D

    Solution :

    [d] \[A\xrightarrow{{}}B,\Delta H=-10\,kJ\,mo{{l}^{-1}}\] It is an exothermic reaction. \[{{E}_{a(b)}}={{E}_{a(f)}}-\Delta H\] \[=50-\left( -10 \right)=60kJ\]


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