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The Rate-Determining Step is Dead. Long Live the Rate-Determining State!

✍ Scribed by Dr. Sebastian Kozuch; Prof. Jan M. L. Martin

Publisher
John Wiley and Sons
Year
2011
Tongue
English
Weight
211 KB
Volume
12
Category
Article
ISSN
1439-4235

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

The concept of a rate‐determining step (RD‐Step) is central to the kinetics community, and it is basic knowledge even for the undergraduate chemical student. In spite of this, too many different definitions of the RD‐Step appear in the literature, all of them with drawbacks. This dilemma has been thoroughly studied by several authors in the attempt to “patch” the drawbacks and bring the RD‐Step to a correct physical meaning. Herein we review with simple models the most notable definitions and some challengers of the RD‐Step concept, to conclude with the deduction that there are no rate‐determining steps, only rate‐determining states.

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