12. Solving a chemistry problem

12. Solving a chemistry problem

805. Elementary reactions have a positive activation energy. Most complex reactions also have a positive activation energy. One of the few exceptions to this rule is the complex gas-phase reaction 2NO O2 → 2NO2, for which the following dependence of the rate constant on temperature was obtained:
T, K 270 370 470 570 670
k*10-3 l2 mol-2s -1 9.124 4.675 3.28 2.75 2.49
Determine the activation energy and the pre-exponential factor.

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