Under pseudo - first order conditions, the variation of jobs with [py] for reaction of square planar [Rh( cod) (PPh 3) 2] + (2* 10^ -4 mol dm^ -3, cod 24.22) with pyridine is as follows: [py]/mol dm^-3: 0.00625, 0.0125, 0.025, 0.05 kobs/s^ -1: 27.85, 30.06, 34.10, 42.04 Show that the data are consistent with the reaction proceeding by two competitive routes, indicate what these pathways are =