CHEMISTRY · Single correct · A Level · Chemistry · Kinetics · Kinetics
Problem
Two elementary reactions, P and Q, have identical collision frequencies and molecular orientations. At 298 K their activation energies are 50 kJ mol⁻¹ for P and 60 kJ mol⁻¹ for Q. Using R=8.31J mol−1K−1, which value is closest to the ratio kP/kQ at 298 K?
(a) 4
(b) 60
(c) 10
(d) 1