Combined Gas Law

As temperature increases, volume increases. Describe the relationship:

• Direct Relationship

• Inverse Relationship

• No Relationship

If a hairspray can is heated, what can be expected of the pressure of the gas inside the can?

• The pressure will increase

• The pressure will decrease

• The pressure will remain constant

• The pressure will equalize

If the number of particles in a rigid container is doubled, what will happen to the pressure? Assume constant temperature.

• pressure will increase by two times

• pressure will be unaffected

• pressure will decrease by half

• pressure will increase by an unknown amount

If the original pressure of a container of gas is 40^oC at a pressure of 1.00 atm, what will the new pressure be if the temperature is decreased to 20^oC?

• 0.50 atm

• 2.00 atm

• 1.50 atm

• 0.94 atm

A gas is heated from 263K to 298K. The volume is increased from 24.0L to 35.0L. If the original pressure was 101.33 kPa, what is the new pressure?

• 78.7 kPa

• 167.2 kPa

• 129.7 kPa

• 61.8 kPa

A sample of sulfur dioxide occupies a volume of 652 mL at 313 K and 150 kPa. What volume will the sulfur dioxide occupy at STP?

STP = 273 K, 101.3 kPa

• 1682.6 mL

• 20.7 mL

• 492.3 mL

• 842.1 mL

A quantity of gas has a volume of 250 L, at 290 K and 303.98 kPa of pressure. What volume must the gas be for the gas to be at 273 K and 101.33 kPa?

• 78.4 L

• 88.5 L

• 706 L

• 771 L

What volume of methane gas at 273 K and 101.33 kPa do you have when the volume is decreased to 0.50 L, with a temperature of 300 K and a pressure of 151.99 kPa.

• 0.68 L

• 0.82 L

• 0.50 L

• 0.37 L

If 3.0 L of helium at 293 K with a pressure of 200 kPa is allowed to expand to 4.4 L with the pressure staying constant. What is the new temperature?

• 702 K

• 430 K

• 157 K

• 0 K

A weather balloon has a volume of 105 L at 98.3 kPa when the temperature is 318 K. What is the volume at 293 K and 106.4 kPa?

• 89.4 L

• 0.32 L

• 93.8 L

• 3.13 L