# Ch 13: Thermodynamics

Watch online thermodynamics video lessons to learn about the role of energy in chemistry and our world. Each lesson includes a self-assessment quiz to help you decide how well you understood the material.

## Thermodynamics - Chapter Summary and Learning Objectives

In this chapter, you'll have the opportunity to explore that elusive chemistry concept known as energy and its relationship to the world we live in. Through a series of fun-to-watch videos, you'll discover how energy is transferred during a chemical reaction or process, and find out how to work with a thermochemical equation.

Using visuals, your instructors will also provide you with an easy-to-understand explanation of Hess's Law and other complex topics that you'll be sure to remember. When you've finished watching the video lessons and taking the online self-assessment quizzes, you should have an understanding of the following topics:

• State functions and their relationship to thermochemistry
• Enthalpy and how energy is transferred
• Entropy of chemical and physical changes
• Calorimetric measurements and heat transfer
• Cell potential energy and free energy in electrochemistry

## Chapter Topics

VideoObjective
State Functions in Thermochemistry Provide a definition of a state function; discuss why it is so important in thermochemistry.
Enthalpy: Energy Transfer in Physical and Chemical Processes Describe how energy is transferred during a chemical or physical process. Use a thermochemical equation to determine how much heat energy is transferred in a reaction.
Using Hess's Law to Calculate the Change in Enthalpy of a Reaction Apply Hess's Law to the change in enthalpy of a chemical reaction.
Calorimetry: Measuring Heat Transfer and Heat Capacity Use heat capacities and temperature measurements to compute the amount of heat transferred.
Predicting the Entropy of Physical and Chemical Changes Provide a definition of entropy; calculate the sign of ?S for chemical and physical changes.
Free Energy: Predicting the Spontaneity of a Reaction Given ?H and ?S, calculate the effect of temperature on spontaneity.
The Relationship between Enthalpy (H), Entropy (S) and Free Energy (G) Find the remaining quantity when provided with two out of the three quantities at a given temperature.
Electrochemistry: Free Energy and Cell Potential Energy Discuss how E°cell, ?G° and equilibrium constants relate to each other.

9 Lessons in Chapter 13: Thermodynamics
Test your knowledge with a 30-question chapter practice test
Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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