Organic Chemistry I For Dummies by Arthur Winter

Author:Arthur Winter
Language: eng
Format: epub, mobi, pdf
ISBN: 9781118828137
Published: 2014-03-25T18:21:36+00:00

The size of the activation barrier determines the rate of the reaction. If the reaction only has to climb a very small energy hill, the reaction will proceed quickly. If the energy hill is high, the reaction will occur much more slowly, just as an athlete runs faster over a small hill than over a mountain.

The top of the energy hill is the transition state of the reaction. This is the point at which the starting materials are midway through the reaction, when the reactants are at their highest energy level, and when the bonds in the reactants are partially broken and bonds in the products partially formed. A transition state cannot be isolated; it’s not a long-lived intermediate, but simply a transition between the starting materials and products. It’s just a point on the road to transforming one material into the next. A reaction passes through the transition state faster than a chemistry professor can mark an X on an exam.

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