# Gas Law Problems

Boyles Law

1. A gas occupies 12.3 litres at a pressure of 40.0 mm Hg. What is the volume when the pressure is increased to 60.0 mm Hg? 2. If a gas at 25.0 °C occupies 3.60 litres at a pressure of 1.00 atm, what will be its volume at a pressure of 2.50 atm? 3. To what pressure must a gas be compressed in order to get into a 3.00 cubic foot tank the entire weight of a gas that occupies 400.0 cu. ft. at standard pressure? 4. A gas occupies 1.56 L at 1.00 atm. What will be the volume of this gas if the pressure becomes 3.00 atm? 5. A gas occupies 11.2 litres at 0.860 atm. What is the pressure if the volume becomes 15.0 L? 6. 500.0 mL of a gas is collected at 745.0 mm Hg. What will the volume be at standard pressure? 7. Convert 350.0 mL at 740.0 mm of Hg to its new volume at standard pressure. 8. Convert 338 L at 63.0 atm to its new volume at standard pressure. 9. Convert 273.15 mL at 166.0 mm of Hg to its new volume at standard pressure. 10. Convert 77.0 L at 18.0 mm of Hg to its new volume at standard pressure. 11. When the pressure on a gas increases, will the volume increase or decrease? 12. If the pressure on a gas is decreased by one-half, how large will the volume change be? 13. A gas occupies 4.31 litres at a pressure of 0.755 atm. Determine the volume if the pressure is increased to 1.25 atm. 14. 600.0 mL of a gas is at a pressure of 8.00 atm. What is the volume of the gas at 2.00 atm? 15. 400.0 mL of a gas are under a pressure of 800.0 torr. What would the volume of the gas be at a pressure of 1000.0 torr? 16. 4.00 L of a gas are under a pressure of 6.00 atm. What is the volume of the gas at 2.00 atm? 17. A gas occupies 25.3 mL at a pressure of 790.5 mm Hg. Determine the volume if the pressure is reduced to 0.804 atm. 18. A sample of gas has a volume of 12.0 L and a pressure of 1.00 atm. If the pressure of gas is increased to 2.00 atm, what is the new volume of the gas? 19. A container of oxygen has a volume of 30.0 mL and a pressure of 4.00 atm. If the pressure of the oxygen gas is reduced to 2.00 atm and the temperature is kept constant, what is the new volume of the oxygen gas? 20. A tank of nitrogen has a volume of 14.0 L and a pressure of 760.0 mm Hg. Find the volume of the nitrogen when its pressure is changed to 400.0 mm Hg while the temperature is held constant. 21. A 40.0 L tank of ammonia has a pressure of 8.00 atm. Calculate the volume of the ammonia if its pressure is changed to 12.0 atm while its temperature remains constant. 22. Two hundred litres of helium at 2.00 atm and 28.0 °C is placed into a tank with an internal pressure of 600.0 kPa. Find the volume of the helium after it is compressed into the tank when the temperature of the tank remains 28.0 °C. 23. You are now wearing scuba gear and swimming under water at a depth of 66.0 ft. You are breathing air at 3.00 atm and your lung volume is 10.0 L. Your scuba gauge indicates that your air supply is low so, to conserve air, you make a terrible and fatal mistake: you hold your breath while you surface. What happens to your lungs? Why? 24. Solve Boyle's Law equation for V2.

25. Boyle's Law deals what quantities?

a. pressure/temperature

b. pressure/volume

c. volume/temperature

d. volume temperature/pressure

26. A 1.5 litre flask is filled with nitrogen at a pressure of 12 atmospheres. What size flask would be required to hold this gas at a pressure of 2.0 atmospheres? 27. 300 mL of O2 are collected at a pressure of 645 mm of mercury. What volume will this gas have at one atmosphere pressure? 28. How many cubic feet of air at standard conditions (1.00 atm.) are required to inflate a bicycle tire of 0.50 cu. ft. to a pressure of 3.00 atmospheres? 29. How much will the volume of 75.0 mL of neon change if the pressure is lowered from 50.0 torr to 8.00 torr? 30. A tank of helium has a volume of 50.0 litres and is under a pressure of 136.1 atm.. This gas is allowed to flow into a blimp until the pressure in the tank drops to 2.722 atm....

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