Phase Changes

Front

What is vaporization?

Back

The phase change from liquid to gas, occurring when a liquid absorbs enough energy to break the bonds between its particles.

Front

What is freezing?

Back

The phase change from liquid to solid, occurring when a liquid loses energy and its particles become fixed in place.

Front

What is condensation?

Back

The phase change from gas to liquid, occurring when a gas loses energy and its particles come closer together.

Front

What is sublimation?

Back

The phase change from solid to gas without passing through the liquid state, occurring when a solid absorbs enough energy.

Front

What is deposition?

Back

The phase change from gas to solid without passing through the liquid state, occurring when a gas loses energy.

Front

What is the state of matter at point A if it is solid?

Back

The particles are closely packed together and vibrate in place.

Front

How do particle movements change during phase changes?

Back

Particles move faster when absorbing energy (e.g., during melting or vaporization) and slower when losing energy (e.g., during freezing or condensation).

Front

What happens to the temperature during a phase change?

Back

The temperature remains constant during a phase change, even though heat energy is being added or removed.

Front

What is the role of energy in phase changes?

Back

Energy is required to overcome intermolecular forces during melting and vaporization, and is released during freezing and condensation.

Front

What is the difference between evaporation and boiling?

Back

Evaporation occurs at the surface of a liquid at any temperature, while boiling occurs throughout the liquid at a specific temperature (boiling point).