Phase Changes, Phase Diagrams & Temperature Scales

Front

What happens to water at 0 degrees Celsius?

Back

Water freezes at 0 degrees Celsius.

Front

What change occurs from point F to point E in a phase diagram?

Back

Deposition occurs from point F to point E.

Front

Below the temperature of point B in a phase diagram, what states can a substance exist in?

Back

A substance can exist as either a solid, liquid, or gas.

Front

What is the absolute coldest temperature anything can reach?

Back

Absolute zero, which is -273.15 degrees Celsius or 0 degrees Kelvin.

Front

What happens to the temperature when molecules move faster?

Back

The temperature increases as the molecules move faster.

Front

Define sublimation.

Back

Sublimation is the process where a solid changes directly into a gas without becoming a liquid.

Front

What is a phase diagram?

Back

A phase diagram is a graphical representation showing the states of a substance at different temperatures and pressures.

Front

What is the boiling point of water in Celsius?

Back

The boiling point of water is 100 degrees Celsius.

Front

What is the melting point of ice?

Back

The melting point of ice is 0 degrees Celsius.

Front

What occurs during condensation?

Back

Condensation is the process where a gas changes into a liquid.