Phase Change Graphs Practice

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 are the three main states of matter?

Back

Solid, Liquid, Gas.

Front

What happens to the energy of a substance during melting?

Back

The substance gains energy as it changes from solid to liquid.

Front

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

Back

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

Front

What is the melting point?

Back

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

Front

What is the boiling point?

Back

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

Front

What occurs between points A and B on a phase change graph?

Back

The substance is gaining energy and transitioning from solid to liquid (melting).

Front

What occurs between points B and C on a phase change graph?

Back

The temperature of the substance remains constant while it is in the liquid state.

Front

What occurs between points C and D on a phase change graph?

Back

The substance is losing energy and transitioning from liquid to gas (boiling).

Front

What is condensation?

Back

Condensation is the process where a gas turns into a liquid, releasing energy.