Phase Change Diagrams

Front

What is a phase change?

Back

A phase change is a transition of matter from one state to another, such as solid, liquid, or gas.

Front

What are the three main states of matter?

Back

Solid, liquid, and gas.

Front

What happens to energy during a phase change?

Back

Energy is either absorbed or released 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 condensation?

Back

Condensation is the phase change from gas to liquid.

Front

What is evaporation?

Back

Evaporation is the phase change from liquid to gas.

Front

What does a phase change diagram illustrate?

Back

A phase change diagram illustrates the states of matter and the transitions between them as temperature and pressure change.

Front

What does the line segment A-B represent in a phase change diagram?

Back

The line segment A-B represents the solid state.

Front

What happens to temperature during a phase change?

Back

During a phase change, the temperature remains constant.