Which change would most directly increase the fraction of collisions whose energies…
CHEMISTRY · Single correct · A Level · Chemistry · Kinetics · Kinetics
Problem
Which change would most directly increase the fraction of collisions whose energies exceed the activation energy for an uncatalyzed reaction, without altering the activation energy itself?
(a) Compressing the reaction mixture by reducing its volume at constant temperature (thereby doubling the reactant concentrations)
(b) Adding a heterogeneous catalyst that provides an alternative pathway for the reaction
(c) Raising the temperature of the reaction mixture by 10 K while keeping volume and concentration constant
(d) Grinding a solid reactant to increase its surface area at constant temperature