“…1 are simply k2/k,, from which we find that when T = 100.4, 112.0, 124.0 "C, k2/k, = 0.51, 0.89, 1.23 mole I-', respectively, corresponding roughly to E2 -E, = 11.0 kcal/mole. It is generally agreed that the activation energy E, for the dissociation of the 2-BuO radical is pressure dependent (6,(11)(12)(13), but there is little consistency amongst the actual values of E, that have so far been determined. At low pressures, usually in the fall-off region, values from 11 to 17 kcal have been quoted (3,11), and at infinite pressure, values of 15.5 and 22.8 kcal have been suggested (6,11).…”