IB Chemistry R2.2 Definitions
This page contains our IB Chemistry definitions for R2.2. By learning each one of these definitions, you will fully cover the content for IB Chemistry 'Rate of change'.
activation energy
The minimum collision energy required for successful collision, dependent on a particle's kinetic energy
catalyst
A substance that increases rate without changing itself by providing an area for reactants to come into proper orientation to lower the activation energy
Rate of Reaction
Measure of the change in concentration over change in time
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