Ideal Gas Law and Dalton's Law of Partial Pressures Test

Calculate the volume that a 0.323 mol sample of a gas will occupy at 265 K and a pressure of 0.900 atm.

• 7.18 L

• 7.81 L

• 4.63 L

• 4.36 L

Dalton's Law states...

• that at a constant temperature the volume of a confined ideal gas varies inversely with its pressure.
• that the total pressure exerted by the mixture of non-reactive gases is equal to the sum of the partial pressures of individual gases
• how gases tend to expand when heated
• that the density of an ideal gas at constant pressure varies inversely with the absolute temperature of the gas.

Three gases, Ar, N₂ and H₂ are mixed in a 500L container. Ar has a pressure of 255 torr, N₂ has a pressure of 228 torr and H₂ has pressure of 752 torr. What is the total pressure in the container?

• 483 torr

• 270 torr

• 1235 torr

A container holds a mixture of two different gases. The oxygen in a container exerts 80 mmHg of pressure on the inside of the container. The total pressure inside the container is 120 mmHg. What is the pressure of the other gas in the container?

• 200 mmHg

• 80 mmHg

• 40 mmHg

• 120 mmHg

What is the total pressure of the heliox gas in the diagram?

• 300 kPa

• 100 kPa

• 400 kPa

• 500 kPa

In a mixture of gases, each gas contributes to the total pressure. The individual contribution of each gas is known as the _________________.

• partial volume

• partial pressure

• molar mass

• mole ratio

A tank of gas contains 50 kPa of helium, 50 kPa of argon, and 100 kPa of neon. What is the total pressure of the gas mixture?

• 100 kPa

• 50 kPa

• 200 L

• 200 kPa

Determine the Kelvin temperature required for 0.0470 mol of gas to fill a balloon to 1.20 L under .998 atm pressure. 

• 0 K 
• 107 K 
• 207 K 
• 307 K 

What does R stand for

• Ideal gas constant

• Real gas constant

• Temperature constant

• Ideal gas law

What pressure, in atm, is exerted by 2.50 L of gas containing 1.35 mol at 320 K?

• 14.19 atm

• 16.53 atm

• 18.42 atm

• 22.54 atm