About This Chapter
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 Factors||Define the factors that affect the rates of chemical reactions.|
|Rate Constant and Rate Laws||Interpret and determine rate laws using experimental data.|
|Rate of Chemical Reaction: Effect of Temperature||Predict the effect of temperature on the rate of a chemical reaction.|
|Collision Theory||Discuss collision theory as an explanation for chemical reactions and rates.|
|Activation Energy and Catalysts||Define activation energy and its relationship to reactions energy; explain how a catalyst can change activation energy.|
|Reaction Mechanisms and the Rate Determining Step||Define reaction mechanism; write a law based on the rate determining step.|
|Kinetics and Equilibrium||Explain the relationship between rate constants for forward and reverse directions and the equilibrium constant for a designated reaction.|
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.
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.
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.
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!
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.
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.
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.
Earning College Credit
Did you know… We have over 95 college courses that prepare you to earn credit by exam that is accepted by over 2,000 colleges and universities. You can test out of the first two years of college and save thousands off your degree. Anyone can earn credit-by-exam regardless of age or education level.
To learn more, visit our Earning Credit Page
Transferring credit to the school of your choice
Not sure what college you want to attend yet? Study.com has thousands of articles about every imaginable degree, area of study and career path that can help you find the school that's right for you.
Other chapters within the Chemistry: High School course
- Introduction to Chemistry
- Measurement and Problem Solving
- Experimental Laboratory Chemistry
- What Is Matter?
- Understanding Atomic Structure
- The Periodic Table of Elements
- The Representative Elements of the Periodic Table
- Nuclear Chemistry
- Bonding for High School Chemistry
- Phase Changes for Liquids and Solids
- Gases in Chemistry
- Solutions in Chemistry
- Stoichiometry and Chemical Equations
- Acids, Bases and Reactions
- Thermodynamics in Chemistry
- Organic Chemistry Basics
- Teaching Resources for High School Chemistry