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Chapter 18.1. Rates of Reaction. Learning Objectives. Understand what a reaction rates are a measure of Know the main tenets (points) of collision theory Be able to identify the factors that affect reaction rates Be able to interpret reaction diagrams. Chemical Kinetics.
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Chapter 18.1 Rates of Reaction
Learning Objectives • Understand what a reaction rates are a measure of • Know the main tenets (points) of collision theory • Be able to identify the factors that affect reaction rates • Be able to interpret reaction diagrams
Chemical Kinetics • Chemical kinetics is the study of reactions rates • A reaction rate is the change in concentration of a reactant/product per unit time (Concentration is molarity)
Collision Theory Three conditions must be met … 1- Atoms/ions/molecules must collide 2- They must collide with enough energy 3- Must hit each other in a proper orientation
Collision Theory collision theory orientation collision theory video game analogy
Factors Affecting Reaction Rates • Reaction rates are affected by: • Temperature • Concentration • Particle Size • Catalysts/Inhibitors
Factors Affecting Reaction Rates • Lets summarize: • Temperature (higher temperature makes rate faster) • Concentration (higher molarity makes rate faster) • Particle Size (smaller particles makes rate faster) • Catalysts/Inhibitors
