Heating Curves

Front

What happens to entropy when temperature increases?

Back

Entropy always increases.

Front

Which phase of matter has the greatest motion and least orderly arrangement?

Back

Gas.

Front

Define a liquid.

Back

Definite volume, indefinite shape.

Front

When is a substance a gas on a heating curve?

Back

During the E-F segment.

Front

When is a substance a solid on a heating curve?

Back

During the A-B segment.

Front

What is a heating curve?

Back

A graph that shows the change in temperature and state of a substance as heat is added.

Front

What occurs during the phase change from solid to liquid?

Back

Melting.

Front

What occurs during the phase change from liquid to gas?

Back

Vaporization.

Front

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

Back

They represent phase changes where temperature remains constant.

Front

What is the relationship between temperature and kinetic energy?

Back

As temperature increases, kinetic energy of particles increases.