Gas Laws

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

In the ideal gas law, what does the variable n represent? 

• gas constant 

• moles 

• Temperature 

• Volume 

Which container will have lower pressure?

• left

• right

• they both have the same pressure

If I have 4 moles of a gas at a pressure of 5.6 atm and a volume of 12 liters, what is the temperature?

• 204 K

• 205 K

• 2046 K

• 2000 K

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

• 4.67 L

• 15.9 L

• 16 L

If I have 5.6 liters of gas in a piston at a pressure of 1.5 atm and compress the gas until its volume is 4.8 L, what will the new pressure inside the piston be?

• 75 atm

• 1.8 atm

• 1.3 atm

• 1.29 atm

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

• 311 K

There are 65 liters of helium in a balloon at 35 K. If the temperature of the balloon is increased to 40 K, what will the new volume of the balloon be?

• 40 L

• 70 L

• 74.3 L

• 75.9 L

There are 40 liters of helium in a balloon at 100 K. If the temperature of the balloon is increased to 200 K, what will the new volume of the balloon be?

• 80 L

• 45 L

• 54 L

• 45.33 L

PV=nRT

• Charles Law

• Boyle's Law

• Combined Gas Law

• Ideal Gas Law