Rate of Reaction and Rate Law

How to measure and express the speed of a chemical reaction.

Rate of Reaction

The rate of reaction is the change in concentration of a reactant or product per unit time — it can be an average rate or an instantaneous rate.

Factors Affecting Rate

Concentration, temperature, and the presence of a catalyst all influence how fast a reaction proceeds.

Order and Molecularity

Order is an experimentally determined value from the rate law; molecularity is the number of reacting species colliding in an elementary step.

Lesson 6 of 24
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