Phase Change Graphs # 2

Front

What is a phase change?

Back

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

Front

What happens to energy during freezing?

Back

During freezing, a substance loses energy as it transitions from a liquid to a solid.

Front

What is the boiling point of a substance?

Back

The boiling point is the temperature at which a liquid turns into a gas.

Front

What is the melting point of a substance?

Back

The melting point is the temperature at which a solid turns into a liquid.

Front

What does a heating curve represent?

Back

A heating curve shows how the temperature of a substance changes as it is heated over time.

Front

What phase is a substance in at point A on a phase change graph?

Back

At point A, the substance is in the solid phase.

Front

What phase change occurs from point C to point B?

Back

The phase change from point C to point B is freezing.

Front

How long does it take for a substance to change from liquid to gas?

Back

It takes 10 minutes for the substance to change from liquid to gas.

Front

What is the state of matter between points A and B?

Back

The state of matter between points A and B is solid.

Front

What happens to the temperature during a phase change?

Back

During a phase change, the temperature remains constant while the substance changes state.