Gas Law Practice

According to Boyle's law of PV, at constant temperature, as the pressure of a given sample of gas is increased, the volume will –

• Increase
• Decrease
• Remains the same

Boyle's PV law : When _______ is held constant, the pressure and volume of a gas are ________  proportional

• temperature,  equally
• mass, inversely
• temperature, inversely
• mass, equally

Which of the following would increase the (gas) pressure of a system?

• Increase the Temperature
• Pump in more gas
• Decrease the volume
• All of these

When the temperature of matter increases the particles...

• speed up and move closer
• speed up and move farther apart
• slow down and move closer together
• slow down and move farther apart

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 gas of volume V is place in a balloon. The pressure is reduced to 1/5 of the original pressure. The volume will be _____ what it was originally.  

• the same as 
• 1/5
• 9 times
• 5 times

What  volume does 6.02 X 10²³ molecules of N₂ have at STP?  

• 44.8 L
• 22.4 L
• 11.2 L
• 67.2 L

Consider a sample of oxygen gas at 27° C with a volume of 9.55L at a pressure if 2.97 atm.  The pressure is changed to 8.25 atm and the gas is heated to 125° C.  What’s the new volume? 

• 4.56 L
• 4.6 L
• 15.9 L
• 16 L

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, argon, nitrogen, and hydrogen, are mixed in a 500.0 L container. argon has a pressure of 255 torr, nitrogen has a pressure of 228 torr and hydrogen has pressure of 752 torr. What is the total pressure in the container?

• 483 torr

• 270 torr

• 1235 torr

• 1240 torr