Practice of Kinetics (Comprehensive Chemical Kinetics, Volume 1)

402 TREATMENT OF EXPERIMENTAL DATAt-Q9Jz3 7.0 aolog10Fig. 3. Variation of a with log,, 8 for a first order reaction accompanied by a zero order reaction.As K increases, the proportion of the reactant consumed by the zero order process increases; sinceK = k'/k[A],, the proportion of A disappearing by the zero order process in a particular instanceincreases as its initial concentration decreases.IT*b 0'09,,Fig. 4. Variation of a with log,, 6 fot a first order reaction accompanied by a second orderreaction. As X increases, the proportion of the reactant consumed by the second order processincreases; since K = k'[A],/k, the proportion of A disappearing by the second order process in aparticular instance increases as its initial concentration increases.c