InterviewSolution
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InterviewSolution
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A reaction takes place in theee steps: the rate constant are `k_(1), k_(2), and k_(3)`. The overall rate constant `k=(k_(1)k_(3))/(k_(2))`. If `E_(1), E_(2)`, and `E_(3)` (energy of activation) are `60, 30` and `10kJ`, respectively, the overall energy of activation isA. `40`B. `30`C. `400`D. `60` |
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Answer» Correct Answer - A `k_(1) = Ae^(-E_(a_(1))//RT)` `k_(2) = Ae^(-E_(a_(2))//RT)` `k_(3) = Ae^(-E_(a_(3))//RT)` Overall rate: `k = (k_(1)k_(3))/(k_(2))` `:.` Overall `E_(a) = E_(a_(1)) + E_(a_(3))+E_(a_(2))` `= 60 + 10 - 30` `= 40 kJ` |
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