Ch ical chemistr Reaction Kinetic Rate laws and equilibrium Constants for Elementary reactions At equilibrium, all the reaction are individually at equilibrium, and setting the net rates each equal to zero gives -kilaB+kcd dcl [C]+k-2EIF] [CD] K1 EFI k LaCk The equilibrium constant of the overall reaction is therefore KD=CD月2CD[=Axk2 [AJB [AB[C [A[B [C]k_1k-2 elementary reaction (17.53)10 Physical Chemistry Rate Laws and Equilibrium Constants for Elementary Reactions At equilibrium, all the reaction are individually at equilibrium, and setting the net rates each equal to zero gives 1 1 [ ][ ] [ ][ ] − = k k A B C D 2 2 [ ] [ ][ ] − = k k C E F [ ][ ] [ ][ ] [ ] k1 A B k 1 C D dt d A  = − + −      [ ] [ ][ ] [ ] k2 C k 2 E F dt d C  = − + −      2 2 1 1 [ ] [ ][ ] [ ][ ] [ ][ ] [ ][ ][ ] [ ][ ][ ][ ] [ ][ ] [ ][ ][ ] − − = = =  =  k k k k C E F A B C D A B C C D E F A B D E F Kc The equilibrium constant of the overall reaction is therefore b f c k k K = elementary reaction (17.53)* Reaction Kinetics