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

  • question_answer
    The temperature dependence of rate constant \[(k)\] of a chemical reaction is written in terms of Arrhenius equation, \[K=A.{{e}^{-E*/RT}}\]. Activation energy \[({{E}^{*}})\] of the reaction can be calculated by plotting     [CBSE PMT 2003]

    A)                 \[\log \,k\,vs\,\frac{1}{\log \,T}\]             

    B)                 \[k\,vs\,T\]

    C)                 \[k\,vs\,\frac{1}{\log \,T}\]         

    D)                 \[\log \,k\,vs\,\frac{1}{T}\] 

    Correct Answer: D

    Solution :

                    \[k=A{{e}^{-{{E}^{0}}/RT}}\] \[\underset{y}{\mathop{\log \,\,K}}\,=\underset{c}{\mathop{\log \,\,A}}\,-\underset{mx}{\mathop{{{E}^{o}}}}\,/RT\]\[\therefore \log \,\,K\,\,\,Vs\,\,\,\frac{1}{T}\].


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