rate-determining step


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rate-determining step

The chemical reaction in a series of sequential reactions that takes the longest to occur.
See also: step
References in periodicals archive ?
It is widely held that disruption of chromatin compaction, which can be induced by histone tail modification is a rate-determining step in processes such as RNA transcription, DNA replication and DNA repair.
Covering first basic concepts then reaction mechanisms and kinetic properties, he discusses such topics as reaction mechanisms and elementary steps, experimental laws and calculation of kinetic laws of homogeneous and heterogeneous systems, modes with rate-determining steps, the theory of the activated complex in the gas phase, and the kinetics of heterogeneous stoichiometric reactions.
The identification of dominant reaction paths, reaction intermediates and rate-determining steps allows a quantification of the effects of reaction conditions and catalyst properties, providing guidelines for catalyst optimization.

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