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vapour pressure

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vapour pressure
n
(Physics / General Physics) Physics the pressure exerted by a vapour. The saturated vapour pressure is that exerted by a vapour in equilibrium with its solid or liquid phase at a particular temperature
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Noun1.vapour pressure - the pressure exerted by a vaporvapour pressure - 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)
force per unit area, pressure, pressure level - the force applied to a unit area of surface; measured in pascals (SI unit) or in dynes (cgs unit); "the compressed gas exerts an increased pressure"


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Solid state: Classification of solids, crystalline state, seven crystal systems (cell parameters a, b, c, alpha, beta, gamma), close packed structure of solids (cubic), packing in fcc, bcc and hcp lattices; Nearest neighbours, ionic radii, Solutions: Raoult's law; Molecular weight determination from lowering of vapour pressure, elevation of boiling point and depression of freezing point.
Their vacuum level is not affected by the vapour pressure of the sealing fluid, cooling water temperatures or process vapour condensing in the seal-fluid.
But there's still more to know about the properties of these perchlorate solutions, such as what their vapour pressure is," Dr Mike Hecht, from NASA's Jet Propulsion Laboratory (JPL) in Pasadena, California, explained.
 
 
 
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