42. Solving a chemistry problem

1. The chemical reaction proceeds under the conditions indicated in the table (see p. 412). Using the collision theory, determine the kinetic characteristic of the reaction that is absent in the corresponding variant.

N
var Reaction T,K Constant
velocity Activation energy E, kJ/mol Steric factor p Diameter of reacting particles σav, cm Answer
6 C2H5Br (C2H5)3N → (C2H5)4NBr (in acetone) 333 ? 50.32 4.9*10-8 5*10-8 5*10-8