Ch.2 Solids, Liquids, and Gases

Front

What happens to the volume of a gas when its pressure increases at constant temperature?

Back

According to Boyle's law, the volume of a gas decreases when its pressure increases at constant temperature.

Front

What type of energy does a substance lose when it cools?

Back

Thermal energy.

Front

Do particles in a liquid move as freely as particles in a solid?

Back

False. Particles in a liquid move more freely than those in a solid.

Front

Which state of matter undergoes changes in volume most easily?

Back

Gas.

Front

What is the relationship between the speed of gas particles and pressure in a container?

Back

The greater the speed of gas particles, the greater the pressure.

Front

What is the definition of a solid?

Back

A solid is a state of matter with a definite shape and volume.

Front

What is the definition of a liquid?

Back

A liquid is a state of matter that has a definite volume but takes the shape of its container.

Front

What is the definition of a gas?

Back

A gas is a state of matter that has no definite shape or volume and expands to fill its container.

Front

What happens to the particles in a substance when it is heated?

Back

The particles gain energy and move faster.

Front

What is the principle behind the behavior of gases in a closed container?

Back

Gas particles collide with the walls of the container, creating pressure.