vapor pressure


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va·por pres·sure

the partial pressure exerted by the vapor phase of a liquid.

vapor pressure

Occupational health The pressure exerted by a
saturated vapor–the gaseous phase of a liquid, a function of the amount of vapor given off by a chemical. See Materials Safety Data Sheets, OSHA. Cf Vapor density.
References in periodicals archive ?
The researchers also calculated the vapor pressure of a second compound, cannabidiol, which is considered less psychoactive than THC.
The saturation vapor pressure will rise over that of gasoline as it blends with low percentage methanol such as M15 and M30, which will lead to vapor block as it used under relative high temperature.
What if the thermostatic element charge is significantly lower in pressure than the vapor pressure at the evaporator outlet?
a light alcohol) evaporates readily under normal conditions and exhibits a large vapor pressure, a strongly bonded liquid (e.
Given the proportionality of vapor pressure with [e.
Since the oil composition changes during the evaporative loss of its lighter components, the temperatures of successive cooling-heating cycles were continually raised from 50[degrees]C to 190[degrees]C to keep the vapor pressure in the range of [10.
Although critics of autogas insist that vapor pressures in the range of typical autofuel will lead to accidents, we don't see a record of that in the NTSB's files.
In terms of monitoring data, the vapor pressure data (derived from the calibrated RH and T sensors) was very insightful.
Where: Ps Abs is the absolute pressure head of the fluid at the point considered normally the pump inlet (m); Pv is the vapor pressure head of the fluid at the temperature and concentration considered (m); V1 is the fluid velocity at pump inlet (m/s); and Pressure head = P/ng (m), where p is pressure in Pa.
Untreated, excess moisture in concrete will produce high levels of vapor pressure from underneath a monolithic, non-breathing flooring system, leading to coating failures such as blisters and peeling.
Arkema has previously demonstrated TDCE's effectiveness in reducing the vapor pressure and viscosity of 134a/polyol premixes and in dramatically reducing the degree of frothing and number of pinholes (see "Learn More" box).
In uncontrolled atmospheric conditions, water molecules that exist in the air exert vapor pressure on the materials of which it comes into contact.