Introduction to Gases

What will happen to the volume of a gas under constant temperature if the pressure increases?

• Increase
• Decrease
• Nothing
• Explosion!

If you increase the pressure of a constant volume of gas, what will happen to the temperature?

• Increase
• Decrease
• Stay the same
• It will Blow Up

What is 50 C in Kelvin?

• 223
• 323
• 100
• 50

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

Which of the following would increase the pressure on a system?

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

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

• 372
• 273
• 237
• 732

A sample of a gas has a volume of 852 mL at 298 K. What temperature is necessary for the gas to have a volume of 945 mL?

• 57.5⁰C
• 57.5⁰K
• 330.5⁰K
• 330.5⁰C

100 degrees Celsius is equal to _______ Kelvin. 

• 0 K
• 273 K
• 173 K
• 373 K

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