FormulaDen.com

Physics Chemistry Math Chemical Engineering Civil Electrical Electronics Electronics and Instrumentation Materials Science Mechanical Production Engineering Financial Health

Constant used in Rohwer's Formula given Change in Vapour Pressure Formula

GoConstant used in Rohwer's Formula given Evaporation Loss Per Day Formula

Fx Copy

LaTeX Copy

Rohwer's Formula Constant refers to an empirical coefficient used in Rohwer's equation to estimate evaporation rates, adjusting for local climatic conditions. Check FAQs

C' = \frac{E}{(1.465 - (0.00732 \cdot P a)) \cdot (0.44 + (0.0732 \cdot u)) \cdot δV}

C' - Rohwer's Formula Constant?E - Evaporation Loss per Day?P_a - Atmospheric Pressure?u - Mean Wind Velocity?δV - Change in Vapour Pressure?

Constant used in Rohwer's Formula given Change in Vapour Pressure Example

With values

With units

Only example

Here is how the Constant used in Rohwer's Formula given Change in Vapour Pressure equation looks like with Values.

Here is how the Constant used in Rohwer's Formula given Change in Vapour Pressure equation looks like with Units.

Here is how the Constant used in Rohwer's Formula given Change in Vapour Pressure equation looks like.

0.7498 = \frac{8.29}{(1.465 - (0.00732 \cdot 74.83)) \cdot (0.44 + (0.0732 \cdot 8)) \cdot 0.2}

0.7498 = \frac{8.29cm}{(1.465 - (0.00732 \cdot 74.83cmHg)) \cdot (0.44 + (0.0732 \cdot 8km/h)) \cdot 0.2cmHg}

0.7498 = \frac{8.29}{(1.465 - (0.00732 \cdot 74.83)) \cdot (0.44 + (0.0732 \cdot 8)) \cdot 0.2}

Tip: Use pencil ( Pencil

) icon above to edit Input Values and Units.

Calculate

Recalculate

Solution

Copy

Reset

You are here -

Home » Category

Engineering » Category

Civil » Category

Environmental Engineering » fx Constant used in Rohwer's Formula given Change in Vapour Pressure

Constant used in Rohwer's Formula given Change in Vapour Pressure Solution

Follow our step by step solution on how to calculate Constant used in Rohwer's Formula given Change in Vapour Pressure?

FIRST Step Consider the formula

C' = \frac{E}{(1.465 - (0.00732 \cdot P a)) \cdot (0.44 + (0.0732 \cdot u)) \cdot δV}

Next Step Substitute values of Variables

∴

C' = \frac{8.29cm}{(1.465 - (0.00732 \cdot 74.83cmHg)) \cdot (0.44 + (0.0732 \cdot 8km/h)) \cdot 0.2cmHg}

Next Step Convert Units

∴

C' = \frac{0.0829m}{(1.465 - (0.00732 \cdot 74.83cmHg)) \cdot (0.44 + (0.0732 \cdot 2.2222m/s)) \cdot 0.2cmHg}

Next Step Prepare to Evaluate

∴

C' = \frac{0.0829}{(1.465 - (0.00732 \cdot 74.83)) \cdot (0.44 + (0.0732 \cdot 2.2222)) \cdot 0.2}

Next Step Evaluate

∴

C' = 0.749829106258448

LAST Step Rounding Answer

∴

C' = 0.7498

Constant used in Rohwer's Formula given Change in Vapour Pressure Formula Elements

Variables

Rohwer's Formula Constant

Rohwer's Formula Constant refers to an empirical coefficient used in Rohwer's equation to estimate evaporation rates, adjusting for local climatic conditions.

Symbol: C'

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Rohwer's Formula Constant

Evaporation Loss per Day

Evaporation Loss per Day refers to the amount of water lost from a surface due to evaporation within a single day, typically measured in millimeters (mm).

Symbol: E

Measurement: LengthUnit: cm

Note: Value should be greater than 0.

Formulas to find Evaporation Loss per Day

Atmospheric Pressure

Atmospheric pressure refers to the force exerted by the weight of the atmosphere on a surface, typically measured in pascals (Pa), millibars (mb), or inches of mercury (inHg).

Symbol: P_a

Measurement: PressureUnit: cmHg

Note: Value should be greater than 0.

Formulas to find Atmospheric Pressure

Mean Wind Velocity

Mean Wind Velocity refers to the wind in kilometers per hour at a height of about 9 meters above the ground.

Symbol: u

Measurement: SpeedUnit: km/h

Note: Value should be greater than 0.

Formulas to find Mean Wind Velocity

Change in Vapour Pressure

Change in Vapour Pressure refers to the difference between maximum vapour pressure and actual vapour pressure.

Symbol: δV

Measurement: PressureUnit: cmHg

Note: Value should be greater than 0.

Formulas to find Change in Vapour Pressure

Other Formulas to find Rohwer's Formula Constant

Go Constant used in Rohwer's Formula given Evaporation Loss Per Day

C' = \frac{E}{(1.465 - (0.00732 \cdot P a)) \cdot (0.44 + (0.0732 \cdot u)) \cdot (V - v)}

Other formulas in Evaporation and Transpiration category

Go Evaporation Loss Per Month

E m = C \cdot (V - v) \cdot (1 + (\frac{u}{16}))

Go Maximum Vapour Pressure given Evaporation Loss Per Month

V = v + (\frac{E m}{C \cdot (1 + (\frac{u}{16}))})

Go Actual Vapour Pressure given Evaporation Loss Per Month

v = V - (\frac{E m}{C \cdot (1 + (\frac{u}{16}))})

Go Monthly Mean Wind Velocity given Evaporation Loss Per Month

u = ((\frac{E m}{C \cdot (V - v)}) - 1) \cdot 16

How to Evaluate Constant used in Rohwer's Formula given Change in Vapour Pressure?

Constant used in Rohwer's Formula given Change in Vapour Pressure evaluator uses Rohwer's Formula Constant = Evaporation Loss per Day/((1.465-(0.00732*Atmospheric Pressure))*(0.44+(0.0732*Mean Wind Velocity))*Change in Vapour Pressure) to evaluate the Rohwer's Formula Constant, The Constant used in Rohwer's Formula given Change in Vapour Pressure is defined as the value of rower's constant when we have prior information of other parameters used. Rohwer's Formula Constant is denoted by C' symbol.

How to evaluate Constant used in Rohwer's Formula given Change in Vapour Pressure using this online evaluator? To use this online evaluator for Constant used in Rohwer's Formula given Change in Vapour Pressure, enter Evaporation Loss per Day (E), Atmospheric Pressure (P_a), Mean Wind Velocity (u) & Change in Vapour Pressure (δV) and hit the calculate button.

FAQs on Constant used in Rohwer's Formula given Change in Vapour Pressure

What is the formula to find Constant used in Rohwer's Formula given Change in Vapour Pressure?

The formula of Constant used in Rohwer's Formula given Change in Vapour Pressure is expressed as Rohwer's Formula Constant = Evaporation Loss per Day/((1.465-(0.00732*Atmospheric Pressure))*(0.44+(0.0732*Mean Wind Velocity))*Change in Vapour Pressure). Here is an example- 0.742593 = 0.0829/((1.465-(0.00732*99764.8526))*(0.44+(0.0732*2.22222222222222))*266.644).

How to calculate Constant used in Rohwer's Formula given Change in Vapour Pressure?

With Evaporation Loss per Day (E), Atmospheric Pressure (P_a), Mean Wind Velocity (u) & Change in Vapour Pressure (δV) we can find Constant used in Rohwer's Formula given Change in Vapour Pressure using the formula - Rohwer's Formula Constant = Evaporation Loss per Day/((1.465-(0.00732*Atmospheric Pressure))*(0.44+(0.0732*Mean Wind Velocity))*Change in Vapour Pressure).

What are the other ways to Calculate Rohwer's Formula Constant?

Here are the different ways to Calculate Rohwer's Formula Constant-

Rohwer's Formula Constant=Evaporation Loss per Day/((1.465-(0.00732*Atmospheric Pressure))*(0.44+(0.0732*Mean Wind Velocity))*(Maximum Vapour Pressure-Actual Vapour Pressure))

Let Others Know

✖

Facebook

Twitter

Copied!

: Value
: Unit

Constant used in Rohwer's Formula given Change in Vapour Pressure Formula

​GoConstant used in Rohwer's Formula given Evaporation Loss Per Day Formula

Constant used in Rohwer's Formula given Change in Vapour Pressure Example

Constant used in Rohwer's Formula given Change in Vapour Pressure Solution

Constant used in Rohwer's Formula given Change in Vapour Pressure Formula Elements

Other Formulas to find Rohwer's Formula Constant

Other formulas in Evaporation and Transpiration category

How to Evaluate Constant used in Rohwer's Formula given Change in Vapour Pressure?

FAQs on Constant used in Rohwer's Formula given Change in Vapour Pressure

Variable Name

GoConstant used in Rohwer's Formula given Evaporation Loss Per Day Formula