1. Factors that Affect Gas Pressure
Section 12.2

2. After reading section 12.2, you should know:
How the amount of gas and the volume of the container affect the gas pressure
How a change in temperature would affect the pressure of a gas

3. Amount of Gas When you pump air into a container, you
increase the amount of gas inside the tire,
which increases the number of collisions between gas particles,
which increases the pressure
Relationship is direct:
If you double the amount of gas, the pressure will double

4. Fewer gas particles, lower pressure
More gas particles, higher pressure

5. In a sealed container, gases move from an area of high pressure to low pressure

6. Volume
If the volume of a container is reduced, the pressure will increase

7. If the volume of a container is increased, the pressure will decrease
Relationship is inverse
If the volume is doubled, the pressure will decrease by half

8. Temperature
If the temperature is increased, the particles will move faster,
Which causes more collisions between particles
Which increases the pressure

9. Increasing the temperature causes the pressure to increase

10. Decreasing the temperature will cause the pressure to decrease
Relationship is direct
As the temperature is doubled, the pressure is doubled
As the temperature is decreased by half, the pressure will decrease by half

11. After reading section 12.2, you should know:
How the amount of gas and the volume of the container affect the gas pressure
How a change in temperature would affect the pressure of a gas