Phase Diagrams and Vapor Pressure Flashcards

Flashcards about Phase Diagrams and Vapor Pressure

Phase Diagram

A diagram showing the physical states of a substance under different conditions of temperature and pressure.

Vapor Pressure

The pressure exerted by a vapor in equilibrium with its condensed phases (solid or liquid) at a given temperature.

Triple Point

The temperature and pressure at which a substance can exist in equilibrium in three different phases (solid, liquid, and gas).

Critical Point

The point on a phase diagram at which the substance has properties intermediate between those of the liquid and gas phases.

Boiling Point

The temperature at which the vapor pressure of a liquid equals the surrounding environmental pressure.

Sublimation

The process by which a solid changes directly into a gas.

Deposition

The change of state from a gas to a solid.

Enthalpy of Vaporization

The heat required to vaporize one mole of a liquid at a specified temperature.