- vapor pressure
- The pressure exerted by the vapors released from an oil at a given temperature when enclosed in an airtight container. For motor gasoline a criterion of vapor-lock tendencies, for light products generally an index of storage and handling requirements. ASTM D 323 is the standard method of measuring vapor pressure for volatile products except for liquefied petroleum gases, where D 1267 is used.
Petroleum refining glossary. 2013.
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Vapor pressure — (also known as equilibrium vapor pressure or saturation vapor pressure ), is the pressure of a vapor in equilibrium with its non vapor phases. All liquids and solids have a tendency to evaporate to a gaseous form, and all gases have a tendency to … Wikipedia
Vapor pressure — or Vapor tension Vapor tension . (Physics) The pressure or tension of a confined body of vapor of a chemical substance in equilibrium with the solid or liquid form of the substance. The pressure of a given saturated vapor is a function of the… … The Collaborative International Dictionary of English
vapor pressure — n. the pressure of a vapor in equilibrium with its liquid or solid form: also called vapor tension … English World dictionary
vapor pressure — noun the pressure exerted by a vapor; often understood to mean saturated vapor pressure (the vapor pressure of a vapor in contact with its liquid form) (Freq. 10) • Syn: ↑vapour pressure • Hypernyms: ↑pressure, ↑pressure level, ↑force per unit… … Useful english dictionary
vapor pressure — noun The pressure that a vapor exerts, or the partial pressure if it is mixed with other gases. See Also: saturation vapor pressure, water vapor pressure … Wiktionary
vapor pressure — garų slėgis statusas T sritis fizika atitikmenys: angl. vapor pressure; vapour pressure vok. Dampfdruck, m rus. давление пара, n pranc. pression de vapeur, f … Fizikos terminų žodynas
vapor pressure — Pressure imposed by either a vapor or gas … Dictionary of automotive terms
vapor pressure — pressure caused as a result of the power of vapors spreading … English contemporary dictionary
vapor pressure — the pressure exerted by the molecules of a vapor, esp. that part of the total pressure exerted by vapor in a mixture of gases, as by water vapor in air. Also called vapor tension. [‡1895 1900] * * * … Universalium
vapor pressure — noun Date: 1865 the pressure exerted by a vapor that is in equilibrium with its solid or liquid form called also vapor tension … New Collegiate Dictionary