PS Chapter 3 Review Quizs

Because of the motion of the particles in a gas, the gas has a definite shape and volume.

• true

• false

What happens to the pressure in a tire if air is slowly leaking out of the tire?

• pressure decreases because volume decreases

• pressure decreases because temperature decreases

• pressure decreases because number of particles decreases

• pressure increases because volume stays the same

The phase change in which a substance changes directly from a solid to a gas.

• sublimation

• condensation

• vaporization

• freezing

This gas law describes the relationship between temperature, volume, and pressure of a gas when the number of particles is constant.

• Charles' Law

• Boyle's Law

• Combined Gas Law

Which phrase describes all particles of matter in the kinetic theory of matter?

• randomly arranged

• in constant motion

• constant temperature

• orderly arrangement

Condensation is an example of an exothermic phase change.

• true

• false

On the sun, where temperatures are extremely high, matter exists in a state known as __________.

As water freezes, it releases heat to its surroundings. Freezing is an example of an __________ change.

• endothermic

• exothermic

When the vapor pressure within a pot of water becomes equal to the atmospheric pressure, the water boils.

• true

• false

What happens to the pressure of a gas if its volume is reduced.

• pressure increases

• pressure decreases

• pressure stays the same