collision theory

activation energy

the minimum energy needed for a reaction to occur

what effect does concentration increase have on the rate of reaction

• increases the number of particles in a given volume, which results in more frequent collisions between reactants

• faster rate of reaction

only effects aqueous

what effect does increase in temperature have on rate of reaction?

• particles have more kinetic energy which results in more frequent collisions

• more collisions meeting the activation energy

• resulting in more frequent successful collisions

• faster rate

applies to all states

what effect does pressure increase have on the rate of reaction?

• increase in the number of particles in a given volume

• results in more frequent collisions between reactants

• faster rate

what effect does increasing the surface area have on the rate of reaction

• increases the number of solid particles available to react

• results in more frequent collisions between reactants

only applies to solids

what effect does a catalyst have on rate of reaction

• provides an alternate route for a reaction by lowering the activation energy

• orientates reactants favourably

• results in more frequent successful collisions applies

• DOESNT IMPACT THE FREQUENCY OF COLLISIONS

applies to moving particles (solid liquid aqueous)