Understanding Chemical Reactions: Collision Theory and Catalysts

This video discusses collision theory and how it applies to chemical reactions. The concept of activation energy and how it relates to the rate of a chemical reaction is explained. The video goes on to explore three ways that the rate of a chemical reaction can be increased: increasing the concentration of reactants, increasing the surface area of solid reactants, and increasing the temperature of the reactants. The role of catalysts in increasing the rate of a chemical reaction is also discussed, with examples such as enzymes and iron. The video concludes by explaining how catalysts work by lowering activation energy.