Extent and speed of a reaction

In this section we will discuss reaction [l.Rl] written as [1.R2], occurring in gas phase, and will eventually generalize this using reaction [1.R4] exhibiting, imless otherwise stated, one or several zones indifferently. 

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Let us return to the definitions of the extent and speed of a reaction (see section 1.3). We have imphdtly admitted that there a stoiehiometry relationship exists between the extent (and speeds) of a reaction, which is defined for each of the principal components of the reaction as ... 

Theorem 7.1.- The extent and speed of a reaction in pseudo-steady state mode is independent of the component chosen to define them. 

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