Ch ical chemistr Reaction Kinetic Consecutive first-Order reactions At all times(conservation of matter) [A+[B]+[C]=LAlo (17.38 BI h,toke k2-kI 1740) C]=[4o1l 2-k1t kt (1741) 2 k1≈k2 k1>>k2 k1<<z10 Physical Chemistry Consecutive First-Order Reactions A B C A o At all times (conservation of matter) [ ]+[ ]+[ ] =[ ]     k t o A A e = − 1 (17.38) ( ) [ ] [ ] 1 2 2 1 1 o k t k t e e k k k A B − − − − = (17.40)         − + − = − −k t −k t o e k k k e k k k C A 1 2 2 1 1 2 1 2 [ ] [ ] 1 (17.41) Reaction Kinetics