Ch ical chemistr Reaction Kinetic Consecutive first-Order reactions Consider two consecutive irreversible first-order reactions B k2 C (1735) 71=[4 db n=kla B 2=-k2[B 2 [B]_(B],(a[B] d,=64-k2B1 kila dB =h4-k2[B d|[C」 k2[B](17.36)8 Physical Chemistry Consecutive First-Order Reactions Consider two consecutive irreversible first-order reactions A B C k k ⎯⎯1→ ⎯⎯2→ (17.35) [ ] r 1 = k1 A [ ] r 2 = k2 B [ ] [ ] 1 1 1 r k A dt d B  = =      [ ] [ ] 2 2 2 r k B dt d B  = − = −      [ ] [ ] [ ] [ ] [ ] 1 2 1 2 k A k B dt d B dt d B dt d B  = −       +      = (17.36) [ ] [ ] k1 A dt d A  = −      [ ] [ ] [ ] k1 A k2 B dt d B  = −      [ ] [ ] k2 B dt d C  =      Reaction Kinetics