Gases Review

Which is TRUE about gases?

• Gases volume stays constant in all pressures

• Gases hold their shape

• Gases have low energy

• Gases take the shape of its container

What happens to air pressure at high altitudes?

• Air pressure decreases

• Air pressure increases

• Air pressure stays the same

The gas laws show relationships between several properties. Which is NOT a property of gases included in gas laws?

• Pressure

• Temperature

• Color

• Volume

What may happen when the temperature of a gas increases?

• Pressure goes down

• Volume decreases

• Pressure increases

• Volume stays the same

When temperature increases, pressure also increases. This is an example of ...

• Direct relationship

• Inverse relationship

What will happen to the pressure of a gas if its volume increases?

• Pressure increases

• Pressure decreases

• Pressure stays the same

An increase in volume causes a decrease in pressure. This is an example of ...

• Direct relationship

• Inverse relationship

A balloon is fully inflated and then put in cold air. What will happen to the volume of the balloon?

• Volume increases

• Volume decreases

• Volume stays the same

What is TRUE about gases?

• Particles are close together

• Volume is small

• Energy is low

• Particles are spread out

For gas to be inside a scuba tank, what must be done?

• Gas has to be compressed

• Gas has to be expanded

• Temperature has to increase