Heating Curves

Front

What happens to particles in an object at higher temperatures?

Back

Particles in an object move faster.

Front

What is the state of a substance at point D on a heating curve?

Back

Evaporating.

Front

Between which points on a heating curve does the temperature of the substance remain constant?

Back

B-C and D-E.

Front

What do heating curves show?

Back

The change in state of matter as heat is added.

Front

How many states of matter are present during line segment BC on a heating curve?

Back

Two.

Front

What is a heating curve?

Back

A graph that represents the temperature change of a substance as heat is added over time.

Front

What occurs during the phase change from solid to liquid?

Back

Melting.

Front

What is the term for the phase change from liquid to gas?

Back

Evaporation.

Front

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

Back

They indicate phase changes where temperature remains constant.

Front

What happens to the kinetic energy of particles during a phase change?

Back

It remains constant while potential energy changes.