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Chapter 13: States of Matter

Difficulty Level: At Grade Created by: CK-12

Image copyright Reika, 2014. www.shutterstock.com. Used under license from Shutterstock.com.

Chapter Overview

Common states of matter include solids, liquids, and gases. The kinetic-molecular theory describes the macroscopic behavior of matter by envisioning particles as small spheres in constant and random motion. Gases are distinguished by the very large amounts of space between the particles and by the pressure that gases can exert. Liquids and solids are called the condensed phases because intermolecular forces have forced the particles to be much closer together. Vapor pressure is the pressure exerted by a gas above a liquid or a solid. Most solids have a very ordered structure called a crystal. Changes of state can be described by heating curves and by phase diagrams.

Online Resources

See the following Web sites for appropriate activities:

Pacing the Lessons

Lesson Class Period(s) (60 min)
13.1 Kinetic-Molecular Theory and Gases 2
13.2 Liquids 1 – 2
13.3 Solids 1 - 2
13.4 Changes of State 1 – 2

Chemistry Concepts

The table below matches each lesson from the FlexBook® student edition to the Chemistry Concepts.

FlexBook® Lesson Chemistry Concepts
13.1 Kinetic-Molecular Theory and Gases 13.1 – 13.5
13.2 Liquids 13.7 – 13.11
13.3 Solids 13.12 – 13.17
13.4 Changes of State 13.18 – 13.20

Chapter Outline

Chapter Summary

Image Attributions

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Description
Difficulty Level:
At Grade
Date Created:
Aug 12, 2014
Last Modified:
May 07, 2015
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CK.SCI.ENG.TE.1.Chemistry-Intermediate.13
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