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G. Behavior of Gases 1. Gas pressure is caused by collisions of gas particles on surfaces.

G. Behavior of Gases 1. Gas pressure is caused by collisions of gas particles on surfaces. 2. Pressure is measured in pascals . 3. 1 Pa = 1 N / m^2 4. Standard air pressure at sea level is 101.3 kPa … this is the same pressure as a big truck (14.7 pounds / sq. inch).

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G. Behavior of Gases 1. Gas pressure is caused by collisions of gas particles on surfaces.

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  1. G. Behavior of Gases 1. Gas pressure is caused by collisions of gas particles on surfaces. 2. Pressure is measured in pascals. 3. 1 Pa = 1 N / m^2 4. Standard air pressure at sea level is 101.3 kPa … this is the same pressure as a big truck (14.7 pounds / sq. inch). 5. We normally use “atm” for problems

  2. 6. Boyle’s Law a. The volume of a gas varies inversely with its pressure if temperature remains constant. b. P1 • V1 = P2 • V2 Pushing the plunger down will increase the pressure Volume of the gas inside the cylinder will decrease

  3. 7. Charles’s Law a. The volume of a gas varies directly with its temperature if pressure remains constant. b. V1 / T1 = V2 / T2 A balloon shrinks when submerged in cold water

  4. 8. Gay-Lussac’s Law Pressure varies directly with temperature if volume remains constant. Don’t throw it in a fire!

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