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Definition of Vapor pressure

Babylon English

pressure caused as a result of the power of vapors spreading
Vapor pressure Definition from Language, Idioms & Slang Dictionaries & Glossaries
hEnglish - advanced version

vapor pressure
\vapor pressure\ or tension \tension\ ]. (physics) the pressure or tension of a confined body of vapor. the pressure of a given saturated vapor is a function of the temperature only, and may be measured by introducing a small quantity of the substance into a barometer and noting the depression of the column of mercury.
vapor pressure
n : 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) [syn: vapour pressure]



WordNet 2.0

Noun
1. 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)
(synonym) vapour pressure
(hypernym) pressure, pressure level, force per unit area
Vapor pressure Definition from Business & Finance Dictionaries & Glossaries
Glossary of petroleum Industry
the pressure exerted by the vapor of a substance when the substance and its vapor are in equilibrium. Equilibrium is established when the rate of evaporation of a substance is equal to the rate of condensation of its vapor.
Vapor pressure Definition from Science & Technology Dictionaries & Glossaries
General Chemistry Glossary
The partial pressure of a gas in equilibrium with a condensed form (solid or liquid) of the same substance.
WEATHER&METEOROLOGY
The pressure exerted by the molecules of a given vapor. In meteorology, it is considered as the part of total atmospheric pressure due to the water vapor content. It is independent of other gases or vapors.
Moxie International's Glossary of Concrete Terms
The pressure exerted by a vapor that is calculated; based upon relative humidity and temperature. The higher the humidity and higher temperature, in degrees Fahrenheit. the greater the vapor pressure exerted.
Technical English by wpv
Vapor pressure denotes the lowest absolute pressure that a given liquid at a given temperature will remain liquid before evaporating into its gaseous form or state.
Rubber Glossary
The maximum pressure exerted by a liquid or a solid, heated to a given temperature in a closed container.
Vapor pressure Definition from Encyclopedia Dictionaries & Glossaries
Wikipedia English - The Free Encyclopedia
Vapor pressure or equilibrium vapor pressure is defined as the pressure exerted by a vapor in thermodynamic equilibrium with its condensed phases (solid or liquid) at a given temperature in a closed system. The equilibrium vapor pressure is an indication of a liquid's evaporation rate. It relates to the tendency of particles to escape from the liquid (or a solid). A substance with a high vapor pressure at normal temperatures is often referred to as volatile.

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Vapor pressure Definition from Society & Culture Dictionaries & Glossaries
EPA Terms of Environment
A measure of a substance's propensity to evaporate, vapor pressure is the force per unit area exerted by vapor in an equilibrium state with surroundings at a given pressure. It increases exponentially with an increase in temperature. A relative measure of chemical volatility, vapor pressure is used to calculate water partition coefficients and volatilization rate constants.
Provided as a public service by the U.S. Environmental Protection Agency
Environmental Engineering (English ver.)
A measure of a substance's propensity to evaporate, vapor pressure is the force per unit area exerted by vapor in an equilibrium state with surroundings at a given pressure. It increases exponentially with an increase in temperature. A relative measure of chemical volatility, vapor pressure is used to calculate water partition coefficients and volatilization rate constants.
Vapor pressure Definition from Medicine Dictionaries & Glossaries
TOXICOLOGY
The pressure exerted when a solid or liquid is in equilibrium with its own vapor. The higher the vapor pressure the higher the volatility.
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