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Dalton's Law of Evaporation Formula

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Evaporation from water body (mm/day) is the process by which liquid water from an open water surface is converted directly to water vapor. Check FAQs

E = K o \cdot (e s - e a)

E - Evaporation from Water Body?K_o - Proportionality Constant?e_s - Saturation Vapour Pressure?e_a - Actual Vapour Pressure?

Dalton's Law of Evaporation Example

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Here is how the Dalton's Law of Evaporation equation looks like with Values.

Here is how the Dalton's Law of Evaporation equation looks like with Units.

Here is how the Dalton's Law of Evaporation equation looks like.

2907.7528 = 1.5 \cdot (17.54 - 3)

2907.7528 = 1.5 \cdot (17.54mmHg - 3mmHg)

2907.7528 = 1.5 \cdot (17.54 - 3)

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Dalton's Law of Evaporation Solution

Follow our step by step solution on how to calculate Dalton's Law of Evaporation?

FIRST Step Consider the formula

E = K o \cdot (e s - e a)

Next Step Substitute values of Variables

∴

E = 1.5 \cdot (17.54mmHg - 3mmHg)

Next Step Convert Units

∴

E = 1.5 \cdot (2338.4679Pa - 399.966Pa)

Next Step Prepare to Evaluate

∴

E = 1.5 \cdot (2338.4679 - 399.966)

Next Step Evaluate

∴

E = 2907.75282

LAST Step Rounding Answer

∴

E = 2907.7528

Dalton's Law of Evaporation Formula Elements

Variables

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.

Formulas to find Evaporation from Water Body

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: K_o

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Proportionality Constant

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: e_s

Measurement: PressureUnit: mmHg

Note: Value can be positive or negative.

Formulas to find Saturation Vapour Pressure

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: e_a

Measurement: PressureUnit: mmHg

Note: Value should be greater than 0.

Formulas to find Actual Vapour Pressure

Other formulas in Evaporation category

Go Meyers formula (1915)

E lake = K m \cdot (e s - e a) \cdot (1 + \frac{u 9}{16})

Go Rohwers formula (1931)

E lake = 0.771 \cdot (1.465 - 0.00073 \cdot P a) \cdot (0.44 + 0.0733 \cdot u 0) \cdot (e s - e a)

Go Dalton-Type Equation

E lake = K \cdot f u \cdot (e s - e a)

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

e s = (\frac{E}{K o}) + e a

How to Evaluate Dalton's Law of Evaporation?

Dalton's Law of Evaporation evaluator uses Evaporation from Water Body = Proportionality Constant*(Saturation Vapour Pressure-Actual Vapour Pressure) to evaluate the Evaporation from Water Body, The Dalton's Law of Evaporation formula is defined as the evaporation is proportional to the difference in vapour pressures of water and air. Evaporation from Water Body is denoted by E symbol.

How to evaluate Dalton's Law of Evaporation using this online evaluator? To use this online evaluator for Dalton's Law of Evaporation, enter Proportionality Constant (K_o), Saturation Vapour Pressure (e_s) & Actual Vapour Pressure (e_a) and hit the calculate button.

FAQs on Dalton's Law of Evaporation

What is the formula to find Dalton's Law of Evaporation?

The formula of Dalton's Law of Evaporation is expressed as Evaporation from Water Body = Proportionality Constant*(Saturation Vapour Pressure-Actual Vapour Pressure). Here is an example- 2907.753 = 1.5*(2338.46788-399.966).

How to calculate Dalton's Law of Evaporation?

With Proportionality Constant (K_o), Saturation Vapour Pressure (e_s) & Actual Vapour Pressure (e_a) we can find Dalton's Law of Evaporation using the formula - Evaporation from Water Body = Proportionality Constant*(Saturation Vapour Pressure-Actual Vapour Pressure).

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Dalton's Law of Evaporation Formula

Dalton's Law of Evaporation Example

Dalton's Law of Evaporation Solution

Dalton's Law of Evaporation Formula Elements

Other formulas in Evaporation category

How to Evaluate Dalton's Law of Evaporation?

FAQs on Dalton's Law of Evaporation

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