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Topic: kinetics problem  (Read 2565 times)

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Offline faizi400

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kinetics problem
« on: August 26, 2010, 08:17:05 AM »
i have derived an eq. for the equilibrium constant k for activated complex.
my teacher derived the eq. for k for activated complex for the following eq.
                                A+B  ::equil:: AB*
                                 AB* :rarrow: product
     
 the result for k was k=Ie- :delta: H*/RTk*

my teacher then gave me an assignment for the k of activated complex for the following eq.
                                 A+B ::equil:: AB*
                                 AB* :rarrow: C*
                              AB*+C* :rarrow: product

i used venthoff eq.
                      d ln k*=-  :delta: H*/RT

nd second and third reactions are possible for that AB* is converting into C* and at the same time AB* and C* are reacting to make product.

having k*1 nd k*2 for second & third eq.
using venthoff equation,k for the 2nd eq. is same as before k=Ie- :delta: H*/RTk*

but the k for third eq. that i did was k=Ie- :delta: H*/RTk*CAB*2/CABCC


and by adding both the k ,the final k is

    k=Ie- :delta: H*/RTk*[1+(CAB*)2/CABCc]/2

i just wanted to know if my derivation is right.

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