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) Gas Properties What are the 6 unique properties of all gas molecules? a. b. c. d. e. f. How do gases behave? How do gases move? What does elastic collisions mean? Kinetic Energy What is Kinetic Energy of gas? 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? 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?