## stoichiometric coeffecients

$aR \to bP, Rate = -\frac{1}{a} \frac{d[R]}{dt} = \frac{1}{b}\frac{d[P]}{dt}$

CaminaB_1D
Posts: 63
Joined: Fri Sep 28, 2018 12:16 am

### stoichiometric coeffecients

Do stoichiometric coefficients only matter for the unique rate or is there other instances in kinetics where stoichiometric coefficients are considered?

StudentD2B
Posts: 43
Joined: Fri Sep 28, 2018 12:27 am

### Re: stoichiometric coeffecients

In a way they matter for elementary reactions in that the formula of a species appears as many times as that species is required (ie: O2+O2+O2 = 3O2) Since elementary reactions match their chemical expression, if a reaction is elementary, the order of a reagent will match its stoichiometric coefficient. This is NOT the case for multistep reactions. As far as if theres more, that's all I've found/seen in the book sections.