Heating Curves

Front

What happens to particles in an object at higher temperatures?

Back

Particles in an object move faster.

Front

What state of matter is represented at letter A in a heating curve?

Back

Solid.

Front

Which letter indicates where water exists in both solid and liquid phases simultaneously?

Back

B.

Front

In a heating curve, what do diagonal lines indicate?

Back

Temperature is changing.

Front

In a heating curve, what do flat lines indicate?

Back

Temperature is constant.

Front

What is the state of the substance in section D of the cooling curve?

Back

It is freezing.

Front

Define a heating curve.

Back

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

Front

What occurs during the flat sections of a heating curve?

Back

The substance is undergoing a phase change.

Front

What is the significance of the melting point on a heating curve?

Back

It is the temperature at which a solid turns into a liquid.

Front

What is the boiling point on a heating curve?

Back

It is the temperature at which a liquid turns into a gas.