order of reaction

The order of reaction and the rate constant can be determined from inspection of the graph in (ii) as follows.

The units of the rate coefficient depend on the global order of reaction:

Orders of reaction for each reactant are often positive integers, but they may also be zero, fractional, or negative.

That is the elasticity for a mass-action rate law is equal to the Order of reaction of the species.

In chemical kinetics, the order of reaction with respect to a given substance (such as reactant, catalyst or product) is defined as the index, or exponent, to which its concentration term in the rate equation is raised.

A universal nomenclature is needed that labels at the level of domain, that labels in synchrony with order of reaction steps as much as possible, and that labels isofunctional paralogs at the same hierarchical level but with discriminating identifiers.

Even in B. subtilis, where the naming was intended to follow an orderly progression in terms of order of reaction steps, there is the complication that DAHP synthase is expressed as a fusion of two catalytic domains, one being a class of chorismate mutase called AroQ.