Phase Change Ch.1

Front

What happens to the molecules' freedom of movement during melting?

Back

The molecules' freedom of movement increases.

Front

What phase change occurs when a liquid turns into a solid?

Back

Freezing.

Front

What happens to the molecules' freedom of movement during freezing?

Back

The molecules' freedom of movement decreases.

Front

What state of matter is characterized by having a definite shape and volume?

Back

Solid.

Front

What state of matter is characterized by having a definite volume but no definite shape?

Back

Liquid.

Front

What state of matter has no definite shape or volume?

Back

Gas.

Front

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

Back

Sublimation.

Front

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

Back

Deposition.

Front

What happens to the energy of molecules during melting?

Back

The energy increases.

Front

What happens to the energy of molecules during freezing?

Back

The energy decreases.