Heating Curve

Front

What is a heating curve?

Back

A heating curve is a graph that shows the change in temperature of a substance as it is heated over time, illustrating phase changes such as melting and boiling.

Front

What happens at point A on a heating curve?

Back

At point A, the substance is in a solid state.

Front

What does point B represent on a heating curve?

Back

Point B represents the melting phase, where the solid is turning into a liquid.

Front

What occurs at point C on a heating curve?

Back

At point C, the substance is in a liquid state.

Front

What is happening at point D on a heating curve?

Back

Point D indicates the boiling phase, where the liquid is turning into a gas.

Front

What does point E represent on a heating curve?

Back

At point E, the substance is in a gaseous state.

Front

What is the significance of the flat sections on a heating curve?

Back

The flat sections indicate phase changes where temperature remains constant while the substance changes state.

Front

What is vaporization?

Back

Vaporization is the process of turning from a liquid into a gas, occurring at the boiling point.

Front

What is melting?

Back

Melting is the process of turning from a solid into a liquid, occurring at the melting point.

Front

What is sublimation?

Back

Sublimation is the process where a solid turns directly into a gas without passing through the liquid phase.