vapour pressure

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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
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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"
References in periodicals archive ?
The results were published in Forensic Chemistry (Lovestead TM, Bruno TJ: Determination of cannabinoid vapor pressures to aid in vapor phase detection of intoxication; 5:79; 2017).
SB1, now plotted as the ratio of vapor pressures versus the reciprocal of temperature.
The most recent HWD testing done by the CRC employed late model vehicles at a range of temperatures using fuels that had vapor pressures appropriate for the test temperature, and measured demerit levels ranging from 4 to 56 [15].
The approach of the current work was to measure vapor pressures of Kukersite oil shale primary oils as a function of the evaporative loss of progressively heavier oil constituents by using a non-isothermal Knudsen effusion method [13-15].
Ellery told us that Airworthy Au-togas is run-of-the-pipeline premium BOB to which the company will add a proprietary additive package to guarantee a minimum octane of 93 and Reid vapor pressures more in line with certified avgas or no higher than 9 PSI.
When the process occurs in assemblies where the interior finish has a low permeance, vapor flow is slowed down and high vapor pressures occur.
Zhang, "Calculation of Vapor Pressures from Model Fragrance Emulsions During Evaporation," J.
The Enquirer reported that opponents of vehicle emissions testing applauded the governor for allowing the program to expire, noting that the state has implemented "alternatives" to emissions testing, such as requiring automobile body shops to utilize "high-efficiency paint sprayers" and mandating the use of cleaning solvents with low Reid vapor pressures.
The apparatus has been performance tested by measuring the vapor pressures of propane, butane, and a standard mixture of propane + butane.
Desiccant dehumidifiers use the changing vapor pressures to dry air continuously in a repeating cycle.
These coatings are harder to ignite than the fresh condensate because of their low vapor pressures, but once they are ignited, the burning layers of built-up condensate develop a lot of heat and smoke.
In this book, knowledge of the vapor pressures over solutions, activities of water, and osmotic coefficients over electrolyte solutions is substantially revised, and new experimental data are given.