Saturated Vapor

saturated vapor

[′sach·ə‚rād·əd ′vā·pər]
A vapor whose temperature equals the temperature of boiling at the pressure existing on it.

Saturated Vapor


vapor that is in thermodynamic equilibrium with a liquid or solid of the same chemical composition.

A liquid and its saturated vapor are in dynamic equilibrium: the number of molecules escaping from the liquid and passing into the vapor phase per unit time is equal to the number of molecules returning to the liquid during the same interval. Satu rated vapor without suspended particles of the liquid is called dry; vapor containing liquid droplets is called wet. The dry saturated vapor state is extremely unstable, since the slightest heat loss leads to partial condensation of the saturated vapor and transforms it into a wet vapor, whereas the slightest heat gain transforms it into a superheated vapor. In the temperature and pressure interval in which thermodynamic equilibrium between the liquid and vapor can exist (between the triple point and the critical point), a fixed saturated vapor temperature corresponds to each pressure. The curve representing the relationship between the saturated vapor pressure and the temperature reflects at the same time the dependence of the boiling point or condensation point on the pressure. The liquid densities are also related in a definite way to the saturated vapor densities. The pressure and density of the saturated vapor increase with increasing temperature, whereas the density of the liquid decreases.

References in periodicals archive ?
The reason is that the saturated vapor pressure of water in air reduces as pressure increases.
The pressure-enthalpy chart for a refrigerant contains a couple of boundary lines, representing the heat content of the fluid when it is liquid on the point of boiling (the saturated liquid line) and when it is gas on the point of condensing (the saturated vapor line).
On leaving the EVA as saturated vapor, the mixture flows to the HEC, in its central tube, and exchanges heat with the liquid solution flowing in the annular space.
As the adipates added, the saturated vapor pressure of methanol-gasoline system reduces with the increasing the length of carbon chain over adipates.
When the vacuum chamber pressure below the temperature corresponding to the saturated vapor pressure, water start gasification, food noodles take away heat can be quantified as the following formula.
d] is defined by method of simple iterations The compressor has to create pressure in the condenser that would be equal to saturated vapor pressure at temperature [T.
Sanjari, "A new simple method for accurate calculation of saturated vapor pressure," Thermochim Acta, vol.
Saturated vapor enters the compressor while saturated liquid gets throttled and is fed into the evaporator via a metering valve.
g] = enthalpy of saturated vapor, kJ kg-1 (Btu lb-1) [h.
During the growth and collapse phases of a cavitation bubble, the vapor pressure inside the bubble is constant and is equal to the saturated vapor pressure.
A dedicated transducer has been provided for measurement of Po (adsorbate saturated vapor pressure), so that continually measuring Po does not slow down analysis capabilities.
SV] are the densities of the saturated liquid and saturated vapor, respectively, and [sigma] is the surface tension between the two phases.