Ch 16: Chemistry Kinetics

About This Chapter

Watch video lessons and learn about chemistry kinetics, or the study of chemical processes. Make sure you understand chemistry kinetics concepts by taking the self-assessment quizzes that follow each lesson.

Chemistry Kinetics - Chapter Summary and Learning Objectives

Chemistry kinetics is a subset of physical chemistry that studies how fast or slow chemical reactions take place. In this chapter you'll learn about the different factors that can affect chemical reaction rates, as well as why some responses happen more quickly than others. You'll also become familiar with rate laws and equations. At the end of this chapter, you should be comfortable with these additional topics and theories:

  • The role of temperature in chemical reaction rates
  • Collision theory, including how chemical reactions take place at particular rates
  • Activation energy, or the least amount of force needed for a chemical reaction to start
  • The role of catalysts or chemical substances in chemical reactions
  • Reaction mechanisms and the speed of chemical reactions
  • Equilibrium and the relationship between chemical reactants and products

Rate of Chemical Reaction: Modifying FactorsDefine the factors that affect the rates of chemical reactions.
Rate Constant and Rate LawsInterpret and determine rate laws using experimental data.
Rate of Chemical Reaction: Effect of TemperaturePredict the effect of temperature on the rate of a chemical reaction.
Collision TheoryDiscuss collision theory as an explanation for chemical reactions and rates.
Activation Energy and CatalystsDefine activation energy and its relationship to reactions energy; explain how a catalyst can change activation energy.
Reaction Mechanisms and the Rate Determining StepDefine reaction mechanism; write a law based on the rate determining step.
Kinetics and EquilibriumExplain the relationship between rate constants for forward and reverse directions and the equilibrium constant for a designated reaction.

7 Lessons in Chapter 16: Chemistry Kinetics
Rate of a Chemical Reaction: Modifying Factors

1. Rate of a Chemical Reaction: Modifying Factors

Why are some reactions much faster than others? Is it possible to change how fast a reaction occurs? In this lesson, you will learn what the rate of a chemical reaction is. You will also discover how factors such as temperature, concentration, surface area, and catalysts impact reaction rates.

Rate Constant and Rate Laws

2. Rate Constant and Rate Laws

Learn what the rate law is and how the rate constant relates to it. Learn what reaction order is and how to determine reaction order when given experimental data containing concentration and reaction rate.

Rate of a Chemical Reaction: Effect of Temperature

3. Rate of a Chemical Reaction: Effect of Temperature

Learn how temperature affects reaction rates. Discover the rate law as well as how the Arrhenius equation relates to the rate law and predicts the effect of temperature on the rate of reaction.

Collision Theory: Definition & Significance

4. Collision Theory: Definition & Significance

This lesson will define and explain collision theory and explore how it is related to chemical reactions and reaction rates. So if you've ever wondered how two particles combine to form a new product, read on!

Activation Energy and Catalysts

5. Activation Energy and Catalysts

Learn how to define activation energy and how it relates to a reaction's energy. Learn what an activated complex is and where it fits into an activation energy diagram. Discover how a catalyst works to change the activation energy of a reaction and what this means to metabolism in the body.

Reaction Mechanisms and The Rate Determining Step

6. Reaction Mechanisms and The Rate Determining Step

This lesson explores what a reaction mechanism is and how it relates to the speed of a reaction. You'll discover how to pinpoint the rate-determining step and learn how to write a rate law based on the rate-determining step.

Chemical Kinetics, Reaction Rate Constant & Equilibrium Constant

7. Chemical Kinetics, Reaction Rate Constant & Equilibrium Constant

Are formulas, rate constants, and chemical reactions getting you down? Don't worry, this lesson will explain how reaction rate and equilibrium constants are related to chemical reactions.

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