vapor pressure

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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 — 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… …   Petroleum refining glossary

• 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 deficit — Vapor pressure deficit, in ecology, is the difference between the actual water vapor pressure and the saturation of water vapor pressure at a particular temperature. Unlike relative humidity, vapor pressure deficit has a simple nearly straight… …   Wikipedia

• Vapor pressure osmometry — is a technique to measure the number average molecular weight of a polymer. It is based upon Raoult s law that governs change in vapor pressure of a solution based on the mole fraction of the solute.The vapor pressure osmometer is composed of two …   Wikipedia

• 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