Phase Diagrams

Front

What is a phase diagram?

Back

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

Front

What does the term 'normal boiling point' mean?

Back

The temperature at which a substance boils at standard atmospheric pressure (1 atm).

Front

What is the normal freezing point of a substance?

Back

The temperature at which a substance changes from liquid to solid at standard atmospheric pressure (1 atm).

Front

What phase change occurs when a solid turns directly into a gas?

Back

Sublimation.

Front

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

Back

Deposition.

Front

What is the significance of the triple point in a phase diagram?

Back

It is the point where all three phases (solid, liquid, gas) coexist in equilibrium.

Front

What does the area under the curve in a phase diagram represent?

Back

The different phases of the substance (solid, liquid, gas) at various temperatures and pressures.

Front

What phase change occurs from liquid to gas?

Back

Vaporization.

Front

What phase change occurs from gas to liquid?

Back

Condensation.

Front

What does the term 'critical point' refer to in a phase diagram?

Back

The temperature and pressure at which the liquid and gas phases become indistinguishable.