Noun
vapor pressure (countable and uncountable, plural vapor pressures)
(physics) The pressure that a vapor exerts, or the partial pressure if it is mixed with other gases.
Achieving high vacuum is difficult because all of the materials exposed to the vacuum must be carefully evaluated for their outgassing and vapor pressure properties. Source: Internet
Accuracy is also usually poor when vapor pressure is under 10 Torr because of the limitations of the apparatus used to establish the Antoine parameter values. Source: Internet
Although the relation between vapor pressure and temperature is non-linear, the chart uses a logarithmic vertical axis to produce slightly curved lines, so one chart can graph many liquids. Source: Internet
A nearly straight line is obtained when the logarithm of the vapor pressure is plotted against 1/(T+230) citation where T is the temperature in degrees Celsius. Source: Internet
At boiling point, all volatile components boil, but for a component, its percentage in the vapor is the same as its percentage of the total vapor pressure. Source: Internet
All solid materials have a vapor pressure. Source: Internet