Gas Law Pop Quiz

Which container will have a lower pressure?

• left
• right
• they both have the same pressure
• I don't know

The relationship of which two variables are compared in Boyle's Law?

• pressure & volume
• volume & temperature
• temperature & pressure
• volume & moles (amount of gas)

When Pressure increases then the Volume must...

• Increase
• decrease

This graph is an example of two variables that are:

• directly proportional
• inversely proportional
• Straight line
• No relation

What happened to the volume between the two steps?

• volume increased
• volume decreased
• volume stayed the same

What causes pressure?

• The walls of the container
• The vacuum in the container
• The collisions of the particles
• Atmospheric pressure acting on the outside walls

In an ideal gas, if everything else is held constant, doubling the volume will ________ the pressure.

• double

• halve

• not affect

• eliminate

Answer explanation

$PV=nRT$

Since nRT cannot change, neither can PV. If you multiply V by 2, you would have to multiply P by 1/2 to keep the right side constant.

According to kinetic molecular theory, more moles of gas means more pressure at the same volume and temperature because...

• more moles = more collisions

• more moles = higher gas constant

• more moles = higher kinetic energy

• more moles = more problems

Gas Laws involve what three terms?

• Solid Liquid Gas 
• Speed Velocity Acceleration 
• Elements Compounds Mixtures 
• Pressure Temperature Volume 

A balloon will pop in the atmosphere because..

• Pressure goes down volume goes up
• Pressure goes up volume goes down
• temperature goes down volume goes up
• volume goes down temperature goes down