1. THE GAS LAWS SPS5b. Relate temperature, pressure, and volume of gases to the behavior of gases. EQ: What role do pressure, volume, and temperature play in the behavior of gases?

2. Boyle’s Law Volume and pressure inversely related Volume increases as pressure decreases Volume decreases as pressure increases EX: Plunger in a piston.

3. Boyle’s Law Formula P 1 V 1 = P 2 V 2 Or (pressure 1 )(volume 1 )= (pressure 2 ) (volume 2 ) KEY POINT PressureVolume

4. Graph of Boyle’s Law

5. Charles’ Law Volume and temperature are proportional Volume increases as temperature increases Volume decreases as temperature decreases EX: Pool float on a hot day.

6. Charles’ Law Formula V/T = k V = the volume of the gas T = the temperature of the gas (measured in Kelvin) K = constant KEY POINT Temperature Volume

7. Graph of Charles’ Law

8. Gay-Lussac’s Law Pressure and temperature are proportional Pressure increases as temperature increases. Pressure decreases as temperature decreases. EX: Spray cans in fire.

9. Gay-Lussac’s Law Formula p/T = constant or p = pressure T = temperature KEY POINT Temperature Pressure

10. Graph of Gay-Lussac’s Law

11. Make a Foldable of Gas Laws Make a flow map for each law. Example of Boyle’s Law: Pressure Increases Volume Increases Molecules spread apart, having more space Pressure Decreases Volume Decreases Molecules compress, coming closer together