Gas Laws Practice Problems

If I have 4.02 moles of a gas at a pressure of 576 kPa and a volume of 12.4 liters, what is the temperature?

• 210. K

• 75.0 K

• 330. C

If he has 7.7 moles of gas at a pressure of 0.090 atm and at a temperature of 56.0C, what is the volume of the container that the gas is in?

• 0.20 mL

• 750 L

• 2300 L

If they have an unknown quantity of gas at a pressure of 0.523 atm, a volume of 25 liters, and a temperature of 300. K, how many moles of gas do they have?

• 2.50 moles

• 0.050 moles

• 0.531 moles

What is standard temperature and pressure (STP)?

• 1.00 atm at 273 K

• 1.00 atm at 0 K

• 1.00 atm at 1 C

• 1.00 atm at 1 K

A sample of nitrogen occupies 300. ml at STP. Under what pressure would this sample occupy 150. ml if the temperature were increased to 546 °C?

• 3.00 atm

• 6.00 atm

• 9.00 atm

A sample of helium occupies 250. ml at 100 °C under a pressure of 1.00 atm. If the pressure were increased to 1900. mm Hg, to what temperature would the sample have to be heated to occupy a volume of 300. ml?

• 1.10 K

• 1000 C

• 1120 K

My car has an internal volume of 2600 liters. If the sun heats my car from a temperature of 20^oC to a temperature of 55^oC, what will the pressure inside my car be? Assume the pressure was initially 760 mm Hg.

• 900 mmHg

• 350 mmHg

• 700 kpa

If I initially have a gas with a pressure of 84 kPa and a temperature of 35^oC and I heat it an additional 230 degrees, what will the new pressure be? Assume the volume of the container is constant.

• 0.050 kpa

• 150 kpa

• 3000 kpa

A sample of gas occupies 10.0 L at 240. °C under a pressure of 80.0 kPa. At what temperature will the gas occupy 20.0 L if the pressure is increased to 107 kPa?

• 175 K

• 13,700 K

• 995 K

Find the total pressure of a mixture of gases if the partial pressures of each gas are 2.0 atm, 3.5 atm, and 2.7 atm.

• 8.2 atm

• 8.20 atm

• 13 atm