Ch ical chemistr Reaction Kinetic Determination of the rate law Isolation method The rate law r=kA[BI (1748) Make initial concentrations of reactant a much less than the concentrations of all other species [B]o>>lA C0>>lalo The rate law becomes r=kA[B.LL=jIAja where j=[B]-[L1( 17.52 Where i is essentially constant The reaction has the pseudo-order a The orders B,.n can be found similarly7 Physical Chemistry Determination of the Rate Law 4. Isolation method    The rate law r = k[A] [B] [L] (17.48) Make initial concentrations of reactant A much less than the concentrations of all other species [B]0 >> [A]0, [C]0 >> [A]0, … The rate law becomes     [ ] [ ] [ ] [ ] r = k A B 0  L 0 = j A (17.52)   0 0 where j  k[B] [L] Where j is essentially constant. The reaction has the pseudo-order . The orders ,… can be found similarly. Reaction Kinetics