Properties of all the equilibria in a system

We now consider a system in which various transformations take place simultaneously. Let R represent the number of those transformations. Each transformation is represented by a balance equation Ep which, for the reaction, is written as  

Certain components may have a stoichiometric coefficient of 0 in reaction p. 

We have seen (section 1.7) that the condition of overall equilibrium required each transformation to have a null affinity. 

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