POGIL: The Rules of the Gas Game
Honors Chemistry
Unit 06 - Gases & KMT
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Name: Group Members:
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Learning Objectives:
Identify the basic differences between particle behavior in the solid, liquid, and gaseous phases.
Develop an understanding of the postulates of the kinetic molecular theory.
Identify how temperature affects molecular motion.
Apply the kinetic molecular theory to predict the outcome of everyday situations.
Text Reference: Chang and Goldsby (Chemistry: The Essential Concepts, McGraw-Hill, 2014) pp. 158−163.
Text Vocabulary:
Joule (J) (p158) unit of energy given by newtons x meters
Kinetic energy (KE) (p159) energy available because of the motion of an object
Kinetic molecular theory of gases (p159) theory that describes the physical behavior of gases at the molecular level
Root-mean-square (rms) speed (urms) (p161) measure of the average molecular speed at a given temperature
Model I: Atoms in Different Phases
The figures to the right show the repre-
sentative particles of a given substance in
various states of matter.
Give complete answers to all questions.
Provide explanations and show work,
where necessary.
Key Questions
1. How are the characteristics of gases different from the characteristics of solids and liquids? Your answer should
relate to particle spacing, potential of particle movement, and particle energy.
2. In terms of spacing, what is necessary to change from a liquid to a gas?
What is this process called? How is this process accomplished?
3. In terms of spacing, what is necessary to change from a liquid to a solid?
What is this process called? How is this process accomplished?
4. In terms of spacing, what is necessary to change from a solid to a gas?
What is this process called? How is this process accomplished?
Revised 2018-2019 LCA
