Phase Changes

Front

What is a phase change?

Back

A phase change is a transition of matter from one state (solid, liquid, gas) to another due to changes in energy and temperature.

Front

What are the three main states of matter?

Back

Solid, liquid, and gas.

Front

What happens to the temperature of a substance during a phase change?

Back

The temperature remains constant during a phase change.

Front

What is melting?

Back

Melting is the phase change from solid to liquid.

Front

What is freezing?

Back

Freezing is the phase change from liquid to solid.

Front

What is evaporation?

Back

Evaporation is the phase change from liquid to gas.

Front

What is condensation?

Back

Condensation is the phase change from gas to liquid.

Front

What is sublimation?

Back

Sublimation is the phase change from solid to gas without passing through the liquid state.

Front

What is deposition?

Back

Deposition is the phase change from gas to solid without passing through the liquid state.

Front

Why do solids have a definite shape?

Back

Solids have a definite shape because their particles are closely packed and vibrate in fixed positions.