Gas Laws Review Sheet Name ______
Know about the following.
1. air
2. gases physical properties
3. particles collisions of gases
4. why do gases diffuse
5. unit of volume, temperature, pressure, amount of gas
6. manometer
7. STP for gases
8. Boyles’ Law
9. Charles’s Law
10. Gay-Lussac’s Law
11. Combined Gas Law
12. Kelvin temperature
13. Dalton’s Law of Partial Pressures
14. Ideal Gas Law
15. Graham’s Law
16. molar volume of gases
17. ideal gas law
18. why gases float
Solve the following problems.
1. A 5.0 L tank of oxygen gas is at a pressure of 3.0 atm. What volume of oxygen will be available if the oxygen is used at the normal atmospheric pressure of 1.0 atm?
2. A 7.0 L balloon at room temperature (22oC) contains hydrogen gas. If the balloon is carried outside to where the temperature is –3.0oC, what volume will the balloon occupy?
3. Nitrogen (80.0 kPa), oxygen (21.0 kPa), carbon dioxide (0.03 kPa), and water vapor (2.0 kPa) are the usual atmospheric components. What is the total atmospheric pressure in kPa?
4. A 500.L volume of helium gas is at a pressure of 750. mm Hg and has a temperature of 300.K. What is the volume of the same gas at 600. mm Hg and 200.K?
5. A sample of gas measures 3.50 L at 273 K. At what temperature will its volume become 4.50L, assuring pressure remains constant?
6. A sample of gas measures 2.50 L at 298K. what will be its volume when its temperature is changed to 268 K at constant pressure?
7. A sample of gas measure 5.00 L at 1.00 atm. To change the volume to 3.50L at constant temperature, what pressure must be applied?
8. How many moles of hydrogen fill a weather balloon whose volume is 250L at a pressure of 0.50 atm with a temperature of –10.0oC?
9. What is the pressure of 3.5 moles of helium at –50.0oC in a rigid container whose volume is 25.0 L?
10. How many moles of oxygen must be placed in a container with a volume of 50.0L to produce a pressure of 4.50 atm at standard temperature?
11. What is the resulting volume of 0.825 L of an ideal gas when it is cooled from 50.0oC to 20.0oC and subjected to a pressure change from 1.45 atm to 1.00 atm?
12. A 441 L sample of nitrogen gas at a pressure of 725 mm Hg is placed into a container of equal volume that already holds hydrogen gas at a pressure of 765 mm Hg. What is the total pressure in the new container?
13. Calculate the relative rates of diffusion of nitrogen gas and hydrogen gas.
14. Calculate the relative rates of diffusion of methane gas and ammonia gas.
15. The relative rate of diffusion between two gases is 1.14. If the less dense gas has a density of 1.93 g/L, what is the density of the more dense gas?
16. The relative rate of diffusion between two gases is 2.04. If the less dense gas has a density of 1.28 g/L, what is the density of the more dense gas?
17. From the following information, find the total pressure: 5.0 g argon, 5.0 g of xenon, 5.0 g krypton, PAr = 86.4 torr.
18. Helium gas in a 2.00L cylinder is under 1.12atm pressure. At 36.5oC, that same gas sample has a pressure of 2.56atm. What was the initial temperature of the gas in the cylinder?
19. If a gas sample has a pressure of 30.7kPa at 0.00oC, by how much does the temperature have to decrease to lower the pressure to 28.4kPa?
20. A rigid plastic container holds 1.00L methane at 660.torr pressure when the temperature if 22.0oC. How much more pressure will the gas exert if the temperature is raised to 44.6oC?