vapour pressure


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Related to vapour pressure: saturated vapour pressure

vapour pressure

n
(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
ThesaurusAntonymsRelated WordsSynonymsLegend:
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"
References in periodicals archive ?
It stated that the vehicle's petrol tank is likely to leak in these instances as the vapour pressure sensors may impact the rear floor panels.
To meet this challenge the VOCON Valve and Reporting System controls the vapour pressure in oil cargo tanks to minimise and fully control VOC emissions.
The volatility of the blend is specified in terms of vapour pressure, and measured by the ASTM D5191 Dry Vapour Pressure Equivalent (DVPE) test method.
When we read about drying plastics, certain terms come up again and again: relative and absolute humidity, dew point, and vapour pressure deficit.
New regulations to cap vapour pressure of North Dakota crude fail to account for how it behaves in transit, according to industry experts, raising doubts about whether the state's much-anticipated rules will make oil train shipments safer.
* Ability to use Reid Vapour Pressure (RVP) values for 13 grades of petroleum liquid.
Bubbles can also form without the addition of heat in the cavitation process, when the pressure of the flow is reduced below vapour pressure. Low flow pressures are associated with local high speeds, such as in fast rotating propellers or high pressure injection nozzles.
Low NPSH versions are also available for refrigeration/cooling applications, or for pumping boiling liquids or high vapour pressure liquids, with an NPSHR down to 0.5m.
the adjustable parameter m is obtained by forcing the equation to reproduce the vapour pressure for non-polar compounds at [T.sub.r] = 0:7.
The inclusion of the vapour pressure and the speed of evaporation allows a true evaluation.