Gas Laws Notes
Directions: Please use the PowerPoint on my website to answer the following questions. Please
make sure to answer thoroughly and correctly, because this is your notes sheet that the exam will be
based on next week.
Types of Gas
What are the three types of gasses? (give the definitions and examples for each)
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Gas Properties
 What are the 6 unique properties of all gas molecules?
a.
b.
c.
d.
e.
f.
 How do gases behave?
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How do gases move?
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What does elastic collisions mean?
Kinetic Energy
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What is Kinetic Energy of gas?
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How is Kinetic Energy determined in a Gas?
Gas Volume

How is the volume of a gas determined? WHY!
Kinetic Molecular Theory (KMT)- tells us basic principles about the movement of gas molecules.
What are the 6 principles?
1.
2.
3.
4.
5.
6.
Measuring Gases- There are 4 ways to measure gases.
1) Temperature
Temperature is a measure of heat; more specifically it is the (average) measure of the…?
Kinetic energy=
More motion = More KE = ______________ temperatures
Less Motion= Lower KE = ______________ temperatures
Read through the explanation of the Kelvin Scale. In your OWN words, explain why we use the Kelvin
Scale for gases below. In your explanation you MUST explain Absolute Zero in order to explain why
we use Kelvin.
2) Volume- What are the 3 measurements for volume?
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
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3) Pressure- What is gas pressure, and what causes it?
What are the units of Gas Pressure?
4) Moles- How do moles relate to gas?
Gas Laws- For the following gas laws, write the definition, the equation, and explain each one. Make
sure to mention which variables are held constant in each.
Boyles Law
Equation:______________________________________
Variables held constant: ___________________________________________
Charles Law
Equation:______________________________________
Variables held constant: ___________________________________________
Gay Lussac’s Law
Equation:______________________________________
Variables held constant: ___________________________________________
Combined Gas Law
Equation:______________________________________
Variables held constant: ___________________________________________
Why is the combined gas law so useful?