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

✖Net Evaporation Losses from Reservoirs on the Stream is the loss of stored volatile liquid component or mixture by evaporation by temperature, pressure, and vapor-recovery systems.ⓘ Net Evaporation Losses [E_M]			+10% -10%
✖Atmospheric pressure also known as barometric pressure (after the barometer), is the pressure within the atmosphere of Earth.ⓘ Atmospheric pressure [P_atm]			+10% -10%
✖Mean Wind Velocity is the average velocity of the wind at certain height.ⓘ Mean Wind Velocity [W_v]			+10% -10%
✖Change in vapour pressure is the difference between maximum vapour pressure to actual vapour pressure.ⓘ Change in vapour pressure [δV]			+10% -10%

✖Constant B is the number that has a fixed value in a given situation or universally or that is characteristic of some substance or instrument.ⓘ Constant used in Rohwer's Formula given Change in Vapour Pressure [b]

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

Formula

`"b" = "E"_{"M"}/((1.465-(0.00732*"P"_{"atm"}))*(0.44+(0.0732*"W"_{"v"}))*"δV")`

Example

`"0.187697"="2"/((1.465-(0.00732*"198.9Pa"))*(0.44+(0.0732*"2cm/s"))*"2cmHg")`

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

STEP 0: Pre-Calculation Summary

Formula Used

Constant B = Net Evaporation Losses/((1.465-(0.00732*Atmospheric pressure))*(0.44+(0.0732*Mean Wind Velocity))*Change in vapour pressure)
b = E_M/((1.465-(0.00732*P_atm))*(0.44+(0.0732*W_v))*δV)
This formula uses 5 Variables

Variables Used

Constant B - Constant B is the number that has a fixed value in a given situation or universally or that is characteristic of some substance or instrument.
Net Evaporation Losses - Net Evaporation Losses from Reservoirs on the Stream is the loss of stored volatile liquid component or mixture by evaporation by temperature, pressure, and vapor-recovery systems.
Atmospheric pressure - (Measured in Pascal) - Atmospheric pressure also known as barometric pressure (after the barometer), is the pressure within the atmosphere of Earth.
Mean Wind Velocity - (Measured in Meter per Second) - Mean Wind Velocity is the average velocity of the wind at certain height.
Change in vapour pressure - (Measured in Pascal) - Change in vapour pressure is the difference between maximum vapour pressure to actual vapour pressure.

STEP 1: Convert Input(s) to Base Unit

Net Evaporation Losses: 2 --> No Conversion Required
Atmospheric pressure: 198.9 Pascal --> 198.9 Pascal No Conversion Required
Mean Wind Velocity: 2 Centimeter per Second --> 0.02 Meter per Second (Check conversion here)
Change in vapour pressure: 2 Centimeter Mercury (0 °C) --> 2666.44 Pascal (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

b = E_M/((1.465-(0.00732*P_atm))*(0.44+(0.0732*W_v))*δV) --> 2/((1.465-(0.00732*198.9))*(0.44+(0.0732*0.02))*2666.44)

Evaluating ... ...

b = 0.187697436269356

STEP 3: Convert Result to Output's Unit

0.187697436269356 --> No Conversion Required

FINAL ANSWER

0.187697436269356 ≈ 0.187697 <-- Constant B

(Calculation completed in 00.004 seconds)

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< 22 Evaporation and Transpiration Calculators

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

Go Constant B = Net Evaporation Losses/((1.465-(0.00732*Atmospheric pressure))*(0.44+(0.0732*Mean Wind Velocity))*(Maximum Vapour Pressure-Actual Vapour Pressure))

Evaporation Loss Per Day

Go Net Evaporation Losses = Constant B*(1.465-(0.00732*Atmospheric pressure))*(0.44+(0.0732*Mean Wind Velocity))*(Maximum Vapour Pressure-Actual Vapour Pressure)

Mean Wind Velocity at Ground Level given Evaporation Loss Per Day

Go Mean Wind Velocity = (Evaporation loss/(Constant B*(1.465-(0.00732*Atmospheric pressure))*(Maximum Vapour Pressure-Actual Vapour Pressure))-0.44)/0.0732

Maximum Vapour Pressure given Evaporation Loss Per Day

Go Maximum Vapour Pressure = Actual Vapour Pressure+(Evaporation loss/(Constant*(1.465-(0.00732*Atmospheric pressure))*(0.44+(0.0732*Mean Wind Velocity))))

Actual Vapour Pressure given Evaporation Loss Per Day

Go Actual Vapour Pressure = Maximum Vapour Pressure-(Evaporation loss/(Constant*(1.465-(0.00732*Atmospheric pressure))*(0.44+(0.0732*Mean Wind Velocity))))

Atmospheric Pressure given Evaporation Loss Per Day

Go Atmospheric pressure = (1.456-(Evaporation loss/(Constant*(0.44+(0.0732*Mean Wind Velocity))*(Maximum Vapour Pressure-Actual Vapour Pressure))))/0.00732

Constant Used in Meyer's Formula given Evaporation Loss Per Month

Go Constant B = Mean Wind Velocity/((Evaporation loss per month/(Meyer's constant*(Maximum Vapour Pressure-Actual Vapour Pressure)))-1)

Maximum Vapour Pressure given Evaporation Loss Per Month

Go Maximum Vapour Pressure = Actual Vapour Pressure+(Evaporation loss per month/(Meyer's constant*(1+(Mean Wind Velocity/Constant))))

Monthly Mean Wind Velocity given Evaporation Loss Per Month

Go Mean Wind Velocity = ((Evaporation loss/(Meyer's constant*(Maximum Vapour Pressure-Actual Vapour Pressure)))-1)*Constant B

Constant Dependent on Depth of Water Bodies given Evaporation Loss Per Month

Go Meyer's constant = Evaporation loss/((Maximum Vapour Pressure-Actual Vapour Pressure)*(1+(Mean Wind Velocity/Constant)))

Actual Vapour Pressure given Evaporation Loss Per Month

Go Actual Vapour Pressure = Maximum Vapour Pressure-(Evaporation loss/(Meyer's constant*(1+(Mean Wind Velocity/Constant))))

Evaporation Loss Per Month

Go Evaporation loss = Meyer's constant*(Maximum Vapour Pressure-Actual Vapour Pressure)*(1+(Mean Wind Velocity/Constant))

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

Go Constant B = Net Evaporation Losses/((1.465-(0.00732*Atmospheric pressure))*(0.44+(0.0732*Mean Wind Velocity))*Change in vapour pressure)

Change in Vapour Pressure given Evaporation Loss Per Day

Go Change in vapour pressure = Net Evaporation Losses/(Constant B*(1.465-(0.00732*Atmospheric pressure))*(0.44+(0.0732*Mean Wind Velocity)))

Evaporation Loss Per Day given Change in Vapour Pressure

Go Net Evaporation Losses = Constant B*(1.465-(0.00732*Atmospheric pressure))*(0.44+(0.0732*Mean Wind Velocity))*Change in vapour pressure

Atmospheric Pressure given Change in Vapour Pressure

Go Atmospheric pressure = (1.456-(Evaporation loss/(Constant*(0.44+(0.0732*Mean Wind Velocity))*Change in vapour pressure)))/0.00732

Evaporation Loss Per Month when Constant Used in Meyer's Formula is 16

Go Evaporation loss per month = Meyer's constant*(Maximum Vapour Pressure-Actual Vapour Pressure)*(1+(Mean Wind Velocity/16))

Evaporation Loss Per Month given Shallow Water Body

Go Evaporation loss per month = 1.5*(Maximum Vapour Pressure-Actual Vapour Pressure)*(1+(Mean Wind Velocity/Constant))

Evaporation Loss Per Month given Deep Water Body

Go Evaporation loss per month = 1.1*(Maximum Vapour Pressure-Actual Vapour Pressure)*(1+(Mean Wind Velocity/Constant))

Evaporation Loss Per Month given Change in Vapour Pressure

Go Evaporation loss per month = Meyer's constant*Change in vapour pressure*(1+(Mean Wind Velocity/Constant))

Constant Dependent on Depth of Water Bodies given Change in Vapour Pressure

Go Meyer's constant = Evaporation loss/(Change in vapour pressure*(1+(Mean Wind Velocity/Constant)))

Change in Vapour Pressure given Evaporation Loss Per Month

Go Change in vapour pressure = Evaporation loss/(Meyer's constant*(1+(Mean Wind Velocity/Constant)))

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

Constant B = Net Evaporation Losses/((1.465-(0.00732*Atmospheric pressure))*(0.44+(0.0732*Mean Wind Velocity))*Change in vapour pressure)
b = E_M/((1.465-(0.00732*P_atm))*(0.44+(0.0732*W_v))*δV)

What is Evaporation Loss ?

The loss of a stored volatile liquid component or mixture by evaporation; controlled by temperature, pressure, and the presence or absence of vapour phase systems.

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

Constant used in Rohwer's Formula given Change in Vapour Pressure calculator uses Constant B = Net Evaporation Losses/((1.465-(0.00732*Atmospheric pressure))*(0.44+(0.0732*Mean Wind Velocity))*Change in vapour pressure) to calculate the Constant B, The Constant used in Rohwer's Formula given Change in Vapour Pressure is defined as the the value of rower's constant when we have prior information of other parameters used. Constant B is denoted by b symbol.

How to calculate Constant used in Rohwer's Formula given Change in Vapour Pressure using this online calculator? To use this online calculator for Constant used in Rohwer's Formula given Change in Vapour Pressure, enter Net Evaporation Losses (E_M), Atmospheric pressure (P_atm), Mean Wind Velocity (W_v) & Change in vapour pressure (δV) and hit the calculate button. Here is how the Constant used in Rohwer's Formula given Change in Vapour Pressure calculation can be explained with given input values -> -2.3E-6 = 2/((1.465-(0.00732*198.9))*(0.44+(0.0732*0.02))*2666.44).

FAQ

What is Constant used in Rohwer's Formula given Change in Vapour Pressure?

The Constant used in Rohwer's Formula given Change in Vapour Pressure is defined as the the value of rower's constant when we have prior information of other parameters used and is represented as b = E_M/((1.465-(0.00732*P_atm))*(0.44+(0.0732*W_v))*δV) or Constant B = Net Evaporation Losses/((1.465-(0.00732*Atmospheric pressure))*(0.44+(0.0732*Mean Wind Velocity))*Change in vapour pressure). Net Evaporation Losses from Reservoirs on the Stream is the loss of stored volatile liquid component or mixture by evaporation by temperature, pressure, and vapor-recovery systems, Atmospheric pressure also known as barometric pressure (after the barometer), is the pressure within the atmosphere of Earth, Mean Wind Velocity is the average velocity of the wind at certain height & Change in vapour pressure is the difference between maximum vapour pressure to actual vapour pressure.

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

The Constant used in Rohwer's Formula given Change in Vapour Pressure is defined as the the value of rower's constant when we have prior information of other parameters used is calculated using Constant B = Net Evaporation Losses/((1.465-(0.00732*Atmospheric pressure))*(0.44+(0.0732*Mean Wind Velocity))*Change in vapour pressure). To calculate Constant used in Rohwer's Formula given Change in Vapour Pressure, you need Net Evaporation Losses (E_M), Atmospheric pressure (P_atm), Mean Wind Velocity (W_v) & Change in vapour pressure (δV). With our tool, you need to enter the respective value for Net Evaporation Losses, Atmospheric pressure, Mean Wind Velocity & Change in vapour pressure and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Constant B?

In this formula, Constant B uses Net Evaporation Losses, Atmospheric pressure, Mean Wind Velocity & Change in vapour pressure. We can use 2 other way(s) to calculate the same, which is/are as follows -

Constant B = Mean Wind Velocity/((Evaporation loss per month/(Meyer's constant*(Maximum Vapour Pressure-Actual Vapour Pressure)))-1)
Constant B = Net Evaporation Losses/((1.465-(0.00732*Atmospheric pressure))*(0.44+(0.0732*Mean Wind Velocity))*(Maximum Vapour Pressure-Actual Vapour Pressure))

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