Gas Law Questions

A balloon has a volume of 5.0 L at 1.2 atm. If the pressure increases to 2.4 atm while the temperature remains constant, what is the new volume?

A gas sample has a volume of 8.0 L at 300 K. If the temperature increases to 600 K while the pressure stays the same, what is the new volume?

A gas in a container is at 2.0 atm and 400 K. If the temperature drops to 200 K and the volume remains constant, what is the new pressure?

A gas has a pressure of 2.5 atm, a volume of 6.0 L, and a temperature of 350 K. How many moles does it have?

A gas sample contains 0.75 moles of gas at a pressure of 1.8 atm and a temperature of 400 K. What is its volume?

A gas mixture contains oxygen at 2.0 atm, nitrogen at 1.5 atm, and helium at 0.5 atm. What is the total pressure?

• 2.0

• 3.5

• 4.0

• 4.5

A mixture of three gases has partial pressures of 3.0 atm, 1.2 atm, and 2.8 atm. What is the total pressure?

If the pressure of a gas increases, what happens to the volume?

• The volume of the gas decreases.

• The volume of the gas increases.

• The volume of the gas remains the same.

• The volume of the gas becomes zero.

If the number of moles of gas increases, what happens to the volume?

• The volume increases.

• The volume decreases.

• The volume remains the same.

• The volume fluctuates.

If the temperature of a gas decreases, what happens to the pressure?

• The pressure increases

• The pressure decreases

• The pressure remains constant

• The pressure fluctuates