The vapor pressure of water calculator found the pressure according to five formulas.
Vapor pressure of water at room temperature mmhg.
Mb in of hg mm hg hpa kpa lbs per square in.
If you want the actual vapor pressure enter the dewpoint.
Enter a temperature or a dewpoint or both.
Assume we want to calculate the vapor pressure of water in 86 f 30 c.
This is therefore the boiling point of water at 1000 mmhg.
1 torr 1 mm hg one millimeter of mercury.
The vapour pressure of water is the pressure at which water vapour is in thermodynamic equilibrium with its condensed state at higher pressures water would condense the water vapour pressure is the partial pressure of water vapour in any gas mixture in equilibrium with solid or liquid water.
Vapor pressure of water calculator formula.
When the temperature in the range of 99 374 degree celsius a 8 14019 b 1810 94 and c 244 485.
As for other substances water vapour pressure is a function of temperature and can be determined with.
Water temperature in celsius a b c.
A the vapor pressure curve of water intersects the p 1000 mmhg line at about 110 c.
Antoine constants for water when water temperature in the range of 1 100 celsius a 8 07131 b 1730 63 c 233 426.
Vapor pressure of water.
See spelling differences or equilibrium vapor pressure is defined as the pressure exerted by a vapor in thermodynamic equilibrium with its condensed phases solid or liquid at a given temperature in a closed system the equilibrium vapor pressure is an indication of a liquid s evaporation rate.
Most materials have very low vapor pressures.
For example water has a vapor pressure of approximately 20 torr at room temperature 22 c 72 f.
Vapor pressure or vapour pressure in british english.
P 10 a b c t where.
Given these values find the vapor pressure of the solution.
To estimate the pressure required for mercury to boil at 250 c find the point where the vapor pressure curve of mercury intersects the line corresponding to a temperature of 250 c.
But remember that vapor pressures increase with temperature.
Mb in of hg mm hg.
The temperature of the solution is 25 c and the vapor pressures of each of these chemicals at 25 c is 95 1 mm hg for benzene 28 4 mm hg for toluene.
Vapor pressure of water t.
Pressure degrees c mmhg degrees c mmhg.
The most often used is the antoine equation 4 232 kpa but the buck formula 4 245 kpa is usually the most accurate one for temperature ranges we typically look for.
If you want the saturated vapor pressure enter the air temperature.
