IB Chemistry - Kinetics

IB Chemistry home > Syllabus 2025 > Kinetics > The energy barrier

Particles need to have a certain minimum energy in order to cause successful collisions. The temperature of a reaction mixture gives a measure of the amount of energy available to the particles.

At a higher temperature the particles on average have higher energy. This translates into particles moving faster and more energetically.

Consequently, collisions are more frequent and occur with greater energy and more successful.

In Chapter 6.4