Phase Diagrams FLASHCARD

Front

What happens when thermal energy (heat) is taken away from particles?

Back

They move slower and closer together.

Front

What type of process is occurring if you move along line segment B-C from right to left?

Back

Freezing.

Front

How long does it take this substance to change from a liquid to a gas?

Back

15 minutes.

Front

What type of process is happening as one moves along line segment B-C from left to right?

Back

Melting.

Front

At higher temperatures, what happens to particles in an object?

Back

Particles in an object move faster.

Front

Define a phase diagram.

Back

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

Front

What is the triple point in a phase diagram?

Back

The condition under which all three phases (solid, liquid, gas) coexist in equilibrium.

Front

What does the line between solid and liquid represent in a phase diagram?

Back

The melting/freezing point of the substance.

Front

What does the line between liquid and gas represent in a phase diagram?

Back

The boiling/condensation point of the substance.

Front

What is vaporization?

Back

The process of a substance changing from a liquid to a gas.