22-23 Gases Practice

Combined gas law involves what three variables?

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

How do gas molecules move? 

• in an orderly fashion 
• constantly and randomly
• they do not move

• in a circular motion

Gas pressure is caused by ______.

• gravity.
• gas molecules colliding with each other.
• gas molecules colliding with surfaces of the container.
• gas molecules reacting with each other.

Gases have...

• A definite shape and volume
• A definite shape but no definite volume
• No definite shape but a definite volume
• No definite shape or volume

True or False: Gases can be compressed. 

• True
• False

What will happen to the volume of a balloon if you warm it up into over hot water?

• Volume will increase

• Volume will decrease

• Volume will not change

If the temperature of a gas decreases, the pressure of the gas will...

• Decrease

• Increase

• Not change

• Cannot be determined

Which container has higher pressure?

• Container A

• Container B

• Container A and B have the same pressure.

When a cold tire is inflated to a certain pressure and then is warmed up due to friction with the road, the pressure increases. This happens because the

• air molecules hit the walls of the tire less frequently

• rubber in the tires reacts with oxygen in the atmosphere
• air molecules speed up and collide with the tire walls more often
• air molecules diffuse rapidly through the walls of the tire.

If a hairspray can is heated, what can be expected of the pressure of the gas inside the can?

• The pressure will increase

• The pressure will decrease

• The pressure will remain constant

• The pressure will equalize