Ch 29: Overview of Thermochemistry

About This Chapter

Work through this chemistry chapter at your own pace for an overview of essential thermochemistry topics. This convenient study resource can help anyone who needs to study for an upcoming test, improve their grades or simply refresh their knowledge of thermochemistry basics.

Overview of Thermochemistry - Chapter Summary

Review these simple and engaging chemistry lessons to learn or refresh your knowledge of thermochemistry fundamentals. Each lesson explores a different thermochemistry topic, such as acid-base reactions, neutralization, enthalpy change and Hess's law. Our expert chemistry instructors will also break down the importance of state functions and the differences between endothermic and exothermic reactions. By the end of the chapter, you should be able to:

  • Evaluate the importance of state functions in thermochemistry
  • Differentiate between exothermic and endothermic reactions
  • Identify the components of a combustion reaction
  • Describe the process of neutralization and acid-base reactions
  • Calculate a chemical reactions's standard enthalpy change
  • Define Hess's law and understand why its used in thermochemistry

The chapter includes several supplemental resources to solidify your understanding of the material. You're encouraged to take the self-assessment quizzes that follow each lesson and print the accompanying lesson transcripts to study later offline. You can submit questions to our instructors if you get stuck and use your course Dashboard to jump to specific lesson topics. Finally, we've made these lessons available at any time of day or night so you can study whenever you have free time.

6 Lessons in Chapter 29: Overview of Thermochemistry
Test your knowledge with a 30-question chapter practice test
State Functions in Thermochemistry

1. State Functions in Thermochemistry

This lesson defines state functions and explains why state functions are so useful in thermochemistry and thermodynamics. You'll also see a few examples of common state functions.

Endothermic and Exothermic Reactions

2. Endothermic and Exothermic Reactions

Explore a chemical reaction at the molecular level. Learn about exothermic and endothermic reactions, what they look like and what happens when they occur. Understand enthalpy and how you can use it to predict whether a reaction will be exothermic or endothermic.

Combustion Reaction: Definition & Examples

3. Combustion Reaction: Definition & Examples

Chemical reactions occur every day. Some of them are quite useful to us. In this lesson, you will learn about chemical reactions that are known as combustion reactions.

Neutralization and Acid-Base Reactions

4. Neutralization and Acid-Base Reactions

From this lesson, you will understand the neutralization process between acids and bases. Learn how a hydroxide ion from a base reacts with a hydronium ion from an acid to neutralize each other and form water. Discover what conjugate acids and bases are and what the definition of amphoteric is.

Standard Enthalpy of Formation: Explanation & Calculations

5. Standard Enthalpy of Formation: Explanation & Calculations

In this video lesson, we learn about the standard enthalpies of formation of substances. We will also learn how we can use these values as one way to calculate the standard enthalpy change of a chemical reaction.

Using Hess's Law to Calculate the Change in Enthalpy of a Reaction

6. Using Hess's Law to Calculate the Change in Enthalpy of a Reaction

Want to make sure you don't blow yourself up during a chemical reaction? This lesson will help you avoid this by teaching you Hess's Law. This is one way to calculate the heat transferred, or enthalpy change, of a chemical reaction.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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