Phase Diagram Practice

Front

What is a phase diagram?

Back

A graphical representation showing the phases of a substance at different temperatures and pressures.

Front

What does the term 'endothermic' mean?

Back

A process that absorbs heat from the surroundings.

Front

What does the term 'exothermic' mean?

Back

A process that releases heat to the surroundings.

Front

What is the boiling point of a substance?

Back

The temperature at which a substance transitions from a liquid to a gas.

Front

What is the melting point of a substance?

Back

The temperature at which a substance transitions from a solid to a liquid.

Front

What phase change occurs during freezing?

Back

The transition from liquid to solid.

Front

What phase change occurs during boiling?

Back

The transition from liquid to gas.

Front

What is a heating curve?

Back

A graph that shows the temperature of a substance as it is heated over time.

Front

What is the significance of the flat segments in a heating curve?

Back

They represent phase changes where temperature remains constant while heat is added.

Front

How does pressure affect the boiling point of a substance?

Back

Increasing pressure raises the boiling point, while decreasing pressure lowers it.