Phase Diagram

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 line between solid and liquid phases represent in a phase diagram?

Back

The melting/freezing point of the substance.

Front

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

Back

The boiling/condensation point of the substance.

Front

What is sublimation?

Back

The phase change from solid to gas without passing through the liquid phase.

Front

What is deposition?

Back

The phase change from gas to solid without passing through the liquid phase.

Front

At what pressure does water exhibit a triple point?

Back

At 0.00604 mmHg, where solid, liquid, and gas phases coexist.

Front

What is the critical point in a phase diagram?

Back

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

Front

What phase is water at 0 °C and 1 atm?

Back

Solid (ice).

Front

What phase is water at 100 °C and 1 atm?

Back

Gas (steam).

Front

What happens to the phase of a substance when pressure increases at a constant temperature?

Back

The phase may change to a more condensed state (e.g., gas to liquid).