Книга: Volatility: Chemistry, Physics, Thermodynamics, Evaporation, Vapor Pressure, Ammonium Chloride, Sublimation, Molecule

High Quality Content by WIKIPEDIA articles! Vapor pressure is the pressure of a vapor which is in equilibrium with its non-vapor phases (i.e., liquid or solid). Most often the term is used to describe a liquid's tendency to Vaporise. It is a measure of the tendency of molecules and atoms to escape from a liquid or a solid. A liquid's atmospheric pressure boiling point corresponds to the temperature at which its vapor pressure is equal to the surrounding atmospheric pressure and it is often called the normal boiling point.