Gas Laws

In order to convert to Kelvin, you add ______ to the Celsius measurement.

• 372

• 273

• 237

• 732

If a balloon is cooled what will happen to the volume?

• Volume will increase
• Volume will decrease
• Volume will not change

Tags

NGSS.HS-PS1-5

Calculate the volume that a 0.323-mol sample of a gas will occupy at 265 K and a pressure of 0.900 atm (make sure you use the correct R value).

• 7.18 L

• 7.81 L

• 4.63 L

• 4.36 L

You have a gas that has a pressure of 2 ATM and a volume of 10L. What would be the new volume if the pressure was changed to 1 ATM?

• 5 L

• 20 L

• It would stay at 10L

• 1 L

A sample of gas with a volume of 30.0 mL at 25.0^oC is heated to 50.0^oC. What is the new volume of the gas?

• 60.0 mL

• 15.0 mL

• 27.5 mL

• 32.5 mL

A sample of oxygen gas has a volume of 150.0 mL when its pressure is .947 atm. What will the volume of the gas be if it is lowered to a pressure of 0.658 atm and the temperature remains constant?

• 72 mL

• 144 mL

• 216 mL

• 288 mL

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

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

• 483torr
• 270torr
• 1235torr

Determine the number of moles in a container of gas at STP with a volume of 99.2 L.

• 2222.08 moles

• 4.43 moles

• 22.4 moles

• 76.8 moles

Determine the initial temperature of a random gas when the initial volume is 2.2 L and it is cooled to 88K with a volume of 0.85 L.

• 0.029 K

• 0.021 K

• 227.76 K

• 34 K