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Gas Law Review

Gas Law Review. Objective/Warm-Up. SWBAT identify and solve gas laws. http://www.quia.com/mc/1921204.html. If temperature goes up, then pressure goes___________. Up. If volume is decreased, then the pressure ____________ Increases.

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Gas Law Review

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  1. Gas Law Review

  2. Objective/Warm-Up • SWBAT identify and solve gas laws. • http://www.quia.com/mc/1921204.html

  3. If temperature goes up, then pressure goes___________. • Up.

  4. If volume is decreased, then the pressure ____________ • Increases

  5. More collisions on the wall of the container causes more ____________ • Pressure

  6. Decreases, Increases, or Stays the Same • As a gas is compressed, the distance between gas molecules ____________ • Decreases

  7. Decreases, Increases, or Stays the Same • As a gas is compressed, the number of gas molecules ____________ • Stays the same

  8. Decreases, Increases, or Stays the Same • As a gas is compressed, the volume ____________ • Decreases

  9. Decreases, Increases, or Stays the Same • As a gas is compressed, the pressure ____________ • increases

  10. Decreases, Increases, or Stays the Same • As a gas is compressed, density ____________ • increases

  11. Decreases, Increases, or Stays the Same • As a gas is compressed, the mass ____________ • Stays the same

  12. Standard temperature is _____ degrees Celsius • 0

  13. To change from Celsius to Kelvin, _____________ • Add 273

  14. Standard pressure is ______ atm • 1

  15. Standard pressure is _____ torr • 760

  16. To change from mmHg to atm,________ • Divide by 760

  17. If the pressure of 2 L of a gas at STP doubles, its new volume would be ____ L. • 1

  18. If the Kelvin temperature of a sample of 2L of gas at STP doubles, the new volume is _______. • 4 L

  19. True or False and WHY? • The gas constant, R, is equal to 0.0821 when the pressure is expressed in kilopascals. • FALSE, pressure needs to be in atmopsheres.

  20. True or False and WHY? • As more gas particles are added to a container, there are fewer collisions because the particles don’t go as far. • FALSE, there are more collisions because they are closer together.

  21. True or False and WHY? • At a constant temperature, the pressure exerted by one mole of a gas decreases if the volume increases. • TRUE, P and V are inversely proportional.

  22. True or False and WHY? • The ideal gas equation will only give correct values if the temperature is expressed in degrees Celsius. • FALSE, temp. in Kelvins

  23. Which one-P,V, n, or T? • Kilopascals (kPa) • Pressure

  24. Which one-P,V, n, or T? • mmHg • pressure

  25. Which one-P,V, n, or T? • Moles • n

  26. Which one-P,V, n, or T? • mL • volume

  27. Which one-P,V, n, or T? • Atm • pressure

  28. Which one-P,V, n, or T? • Grams • n-change grams to moles

  29. Which one-P,V, n, or T? • oC • T-change to Kelvin

  30. If I initially have a gas at a pressure of 12 atm, a volume of 23 liters, and a temperature of 200 K, and then I raise the pressure to 14 atm and increase the temperature to 300 K, what is the new volume of the gas? • 29.6 L

  31. A gas takes up a volume of 17 liters, has a pressure of 2.3 atm, and a temperature of 299 K. If I raise the temperature to 350 K and lower the pressure to 1.5 atm, what is the new volume of the gas? • 30.5 L

  32. If I have 2.9 L of gas at a pressure of 5 atm and a temperature of 50 0C, what will be the temperature of the gas if I decrease the volume of the gas to 2.4 L and decrease the pressure to 3 atm? • 160 K

  33. If I have 17 liters of gas at a temperature of 67 0C and a pressure of 88.89 atm, what will be the pressure of the gas if I raise the temperature to 94 0C and decrease the volume to 12 liters? • 136 atm

  34. If I have 4 moles of a gas at a pressure of 5.6 atm and a volume of 12 liters, what is the temperature? • 205 K

  35. If I have an unknown quantity of gas at a pressure of 1.2 atm, a volume of 31 liters, and a temperature of 87 0C, how many moles of gas do I have? • 1.26 moles

  36. If I contain 3 moles of gas in a container with a volume of 60 liters and at a temperature of 400 K, what is the pressure inside the container? • 1.64 atm

  37. If I have 7.7 moles of gas at a pressure of 0.09 atm and at a temperature of 56 0C, what is the volume of the container that the gas is in? • 2310 L

  38. If I have 0.275 moles of gas at a temperature of 75 K and a pressure of 1.75 atmospheres, what is the volume of the gas? • 0.97 L

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