JEE Main & Advanced Chemistry Chemical Kinetics / रासायनिक बलगतिकी Question Bank Critical Thinking Chemical Kinetics

  • question_answer
    Activation energy of a chemical reaction can be determined by  [CBSE PMT 1998; AFMC 1999; BHU 2000]

    A)                 Changing concentration of reactants

    B)                 Evaluating rate constant at standard temperature

    C)                 Evaluating rate constants at two different temperatures

    D)                 Evaluating velocities of reaction at two different temperatures

    Correct Answer: C

    Solution :

                    \[\log \frac{{{K}_{2}}}{{{K}_{1}}}=\frac{{{E}_{a}}}{2.303R}\left[ \frac{{{T}_{2}}-{{T}_{1}}}{{{T}_{1}}{{T}_{2}}} \right]\]


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