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Section 12.2 Factors that Affect Gas Pressure. After reading section 12.2, you should know: How the amount of gas and the volume of the container affect.

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Presentation on theme: "Section 12.2 Factors that Affect Gas Pressure. After reading section 12.2, you should know: How the amount of gas and the volume of the container affect."— Presentation transcript:

1 Section 12.2 Factors that Affect Gas Pressure

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


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