Gas Laws

Charles' Law States...

• As Pressure goes up volume goes down
• As Pressure goes up temperature goes up
• As Volume goes up temperature goes up 
• As Pressure goes down volume goes down 

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

• P1/T1 = P2/T2
• P1V1 = P2V2
• V1/n1 = V2/n2
• PV = nRT

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

• V1/n1 = V2/n2
• PV = nRT
• P1/T1 = P2/T2
• V1/T1 = V2/T2

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?

• P1V1 = P2V2
• P1/T1 + P2/T2
• PV = nRT
• V1/T1 = V2/T2

If the pressure exerted by a gas at 298 K in a volume of 0.044 L is 3.81 atm, how many moles of gas are present?

• P1/T1 = P2/T2
• PV = nRT
• V1/n1 = V2/n2
• P1V1 = P2V2

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

Tags

NGSS.HS-PS1-5

How do gas molecules move? 

• in an orderly fashion 
• constantly and randomly
• in straight line paths
• in a circular motion

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

When Volume increases then Pressure must...

• Increase
• Decrease

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

• 372
• 273
• 237
• 732

In the ideal gas law, which variable represents the gas constant?

• n
• R
• T
• V