Phase Diagrams

Front

What is a phase diagram?

Back

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

Front

What does the melting point indicate?

Back

The temperature at which a solid becomes a liquid at a given pressure.

Front

What happens along the AC line in a phase diagram?

Back

Melting and freezing occur along the AC line.

Front

What is the boiling point?

Back

The temperature at which a liquid becomes a gas at a given pressure.

Front

What does the term 'critical point' refer to?

Back

The temperature and pressure at which the distinction between liquid and gas phases disappears.

Front

What is the significance of the triple point?

Back

The unique set of conditions where all three phases (solid, liquid, gas) coexist in equilibrium.

Front

How does pressure affect the state of matter?

Back

Increasing pressure can change a substance from gas to liquid or from liquid to solid.

Front

What state of matter is typically found at low temperatures and high pressures?

Back

Solid.

Front

What state of matter is typically found at high temperatures and low pressures?

Back

Gas.

Front

What happens to a substance at temperatures above its boiling point?

Back

It exists as a gas.