Vapour Pressure of Water at given Temperature for Evaporation in Water Bodies Formula

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Saturation Vapour Pressure at Water Surface (mm of mercury) is defined as the pressure exerted by a vapor in thermodynamic equilibrium with its condensed phases at a given temperature. Check FAQs
es=(EKo)+ea
es - Saturation Vapour Pressure?E - Evaporation from Water Body?Ko - Proportionality Constant?ea - Actual Vapour Pressure?

Vapour Pressure of Water at given Temperature for Evaporation in Water Bodies Example

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Here is how the Vapour Pressure of Water at given Temperature for Evaporation in Water Bodies equation looks like with Values.

Here is how the Vapour Pressure of Water at given Temperature for Evaporation in Water Bodies equation looks like with Units.

Here is how the Vapour Pressure of Water at given Temperature for Evaporation in Water Bodies equation looks like.

17.5362Edit=(2907Edit1.5Edit)+3Edit
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Vapour Pressure of Water at given Temperature for Evaporation in Water Bodies Solution

Follow our step by step solution on how to calculate Vapour Pressure of Water at given Temperature for Evaporation in Water Bodies?

FIRST Step Consider the formula
es=(EKo)+ea
Next Step Substitute values of Variables
es=(29071.5)+3mmHg
Next Step Convert Units
es=(29071.5)+399.966Pa
Next Step Prepare to Evaluate
es=(29071.5)+399.966
Next Step Evaluate
es=2337.966Pa
Next Step Convert to Output's Unit
es=17.5362355800243mmHg
LAST Step Rounding Answer
es=17.5362mmHg

Vapour Pressure of Water at given Temperature for Evaporation in Water Bodies Formula Elements

Variables
Saturation Vapour Pressure
Saturation Vapour Pressure at Water Surface (mm of mercury) is defined as the pressure exerted by a vapor in thermodynamic equilibrium with its condensed phases at a given temperature.
Symbol: es
Measurement: PressureUnit: mmHg
Note: Value can be positive or negative.
Evaporation from Water Body
Evaporation from water body (mm/day) is the process by which liquid water from an open water surface is converted directly to water vapor.
Symbol: E
Measurement: NAUnit: Unitless
Note: Value can be positive or negative.
Proportionality Constant
The proportionality constant represented by 'Ko' is the ratio between two directly proportional quantities which depends upon the characteristics of the aquifer and the area of the well.
Symbol: Ko
Measurement: NAUnit: Unitless
Note: Value can be positive or negative.
Actual Vapour Pressure
Actual Vapour Pressure is the air in mm of mercury is the vapour pressure exerted by the water in the air.
Symbol: ea
Measurement: PressureUnit: mmHg
Note: Value should be greater than 0.

Other formulas in Evaporation category

​Go Meyers formula (1915)
Elake=Km(es-ea)(1+u916)
​Go Rohwers formula (1931)
Elake=0.771(1.465-0.00073Pa)(0.44+0.0733u0)(es-ea)
​Go Dalton-Type Equation
Elake=Kfu(es-ea)
​Go Dalton's Law of Evaporation
E=Ko(es-ea)

How to Evaluate Vapour Pressure of Water at given Temperature for Evaporation in Water Bodies?

Vapour Pressure of Water at given Temperature for Evaporation in Water Bodies evaluator uses Saturation Vapour Pressure = (Evaporation from Water Body/Proportionality Constant)+Actual Vapour Pressure to evaluate the Saturation Vapour Pressure, The Vapour Pressure of Water at given Temperature for Evaporation in Water Bodies formula is defined as the parameters of daily evaporation E, the saturated vapour pressure of water ew and vapour pressure of air ea in Dalton's Formula which states that Evaporation is proportional to the difference in vapour pressures of water and air. Saturation Vapour Pressure is denoted by es symbol.

How to evaluate Vapour Pressure of Water at given Temperature for Evaporation in Water Bodies using this online evaluator? To use this online evaluator for Vapour Pressure of Water at given Temperature for Evaporation in Water Bodies, enter Evaporation from Water Body (E), Proportionality Constant (Ko) & Actual Vapour Pressure (ea) and hit the calculate button.

FAQs on Vapour Pressure of Water at given Temperature for Evaporation in Water Bodies

What is the formula to find Vapour Pressure of Water at given Temperature for Evaporation in Water Bodies?
The formula of Vapour Pressure of Water at given Temperature for Evaporation in Water Bodies is expressed as Saturation Vapour Pressure = (Evaporation from Water Body/Proportionality Constant)+Actual Vapour Pressure. Here is an example- 0.024302 = (2907/1.5)+399.966.
How to calculate Vapour Pressure of Water at given Temperature for Evaporation in Water Bodies?
With Evaporation from Water Body (E), Proportionality Constant (Ko) & Actual Vapour Pressure (ea) we can find Vapour Pressure of Water at given Temperature for Evaporation in Water Bodies using the formula - Saturation Vapour Pressure = (Evaporation from Water Body/Proportionality Constant)+Actual Vapour Pressure.
Can the Vapour Pressure of Water at given Temperature for Evaporation in Water Bodies be negative?
Yes, the Vapour Pressure of Water at given Temperature for Evaporation in Water Bodies, measured in Pressure can be negative.
Which unit is used to measure Vapour Pressure of Water at given Temperature for Evaporation in Water Bodies?
Vapour Pressure of Water at given Temperature for Evaporation in Water Bodies is usually measured using the Millimeter Mercury (0 °C)[mmHg] for Pressure. Pascal[mmHg], Kilopascal[mmHg], Bar[mmHg] are the few other units in which Vapour Pressure of Water at given Temperature for Evaporation in Water Bodies can be measured.
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