Vapor pressure - Wikipedia
Vapor pressure[a] or equilibrium vapor pressure is the pressure exerted by a vapor in thermodynamic equilibrium with its condensed phases (solid or liquid) at a given temperature …
Vapor Pressure: Definition, Formula, Examples, and Table
Vapor pressure is the pressure exerted by a gas when it is in equilibrium with its liquid or solid form. In a closed container, some molecules of a liquid always escape into the air as gas, …
Vapor Pressure – Definition and How to Calculate It
Apr 24, 2021 · Vapor pressure (or vapour pressure) is the equilibrium pressure of a vapor above its liquid or solid state in a closed container. In this type of closed system, some molecules of a …
Vapor Pressure - Purdue University
The vapor pressure of a liquid is the equilibrium pressure of a vapor above its liquid (or solid); that is, the pressure of the vapor resulting from evaporation of a liquid (or solid) above a sample of …
Vapour pressure | Definition & Facts | Britannica
Nov 11, 2025 · Vapour pressure, pressure exerted by a vapour when the vapour is in equilibrium with the liquid or solid form, or both, of the same substance—i.e., when conditions are such …
Vapor Pressure | Chemistry Tutorial at The Physics Classroom
Vapor pressure is a measure of how eagerly molecules escape from a liquid (or solid) into the gas phase. When evaporation and condensation balance out, the vapor pressure represents a …
Chapter 11.4: Vapor Pressure - Chemistry LibreTexts
May 28, 2025 · In this section, we describe vapor pressure in more detail and explain how to quantitatively determine the vapor pressure of a liquid.