Energy and Phase Changes in matter

Front

What is the process called when a solid turns directly into a gas?

Back

Sublimation

Front

Between which points is the temperature of the substance remaining constant (not changing)?

Back

B-C, D-E

Front

Is energy being added or removed from the substance in the following phase change diagram as you go from A to C?

Back

Energy is being added (taken in).

Front

Which phase change is being represented in the particle diagram?

Back

Evaporation

Front

How are solids different from liquids?

Back

Particles in solids are vibrating in place.

Front

What is the phase change from liquid to solid called?

Back

Freezing

Front

What is the phase change from gas to liquid called?

Back

Condensation

Front

What happens to the energy of a substance during melting?

Back

Energy is absorbed.

Front

What is the term for the energy required to change a substance from solid to liquid?

Back

Heat of fusion

Front

What is the term for the energy required to change a substance from liquid to gas?

Back

Heat of vaporization