Properties of Gases (Conceptual)

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

• Decreases

• Increases

• Does not change

Which container will have lower pressure?

• left

• right

• they both have the same pressure

Gas laws involve what three variables?

• Solid Liquid Gas 

• Speed Velocity Acceleration 

• Elements Compounds Mixtures 

• Pressure Temperature Volume 

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.

At higher temperatures...

• particles in an object have less energy

• particles in an object move faster

• a gas contracts

If you place a balloon in a freezer what happens to the size of the balloon?

• Doubles

• increases

• decreases

• stays still

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

When the temperature of a gas 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

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.

If a balloon is cooled what will happen to the volume?

• Volume will increase

• Volume will decrease

• Volume will not change