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Vapour Density Solution

STEP 0: Pre-Calculation Summary
Formula Used
vapor_density = (Specific Humidity*(Total pressure of moist air-Pressure of water vapour))/(287*Dry Bulb Temperature)
ρv = (ω*(pt-pv))/(287*td)
This formula uses 4 Variables
Variables Used
Specific Humidity- Specific Humidity is the ratio of the mass of water vapor to the total mass of the air parcel.
Total pressure of moist air - Total pressure of moist air is the pressure exerted by the mixture of air and water vapour which is equal to the sum of the respected pressures. It is also called barometric pressure. (Measured in Bar)
Pressure of water vapour - Pressure of water vapour is the pressure exerted by the water vapour in the moist air or the mixture of dry air and water vapour. (Measured in Bar)
Dry Bulb Temperature - Dry bulb temperature is the temperature of air measured by a thermometer freely exposed to the air but shielded from radiation and moisture. (Measured in Kelvin)
STEP 1: Convert Input(s) to Base Unit
Specific Humidity: 1 --> No Conversion Required
Total pressure of moist air: 100 Bar --> 10000000 Pascal (Check conversion here)
Pressure of water vapour: 60 Bar --> 6000000 Pascal (Check conversion here)
Dry Bulb Temperature: 100 Kelvin --> 100 Kelvin No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
ρv = (ω*(pt-pv))/(287*td) --> (1*(10000000-6000000))/(287*100)
Evaluating ... ...
ρv = 139.372822299652
STEP 3: Convert Result to Output's Unit
139.372822299652 Kilogram per Meter³ --> No Conversion Required
FINAL ANSWER
139.372822299652 Kilogram per Meter³ <-- Vapor density
(Calculation completed in 00.016 seconds)

6 Vapour Density Calculators

Dry Bulb Temperature given vapor density
Dry_bulb_tempertaure = (Specific Humidity*(Total pressure of moist air-Pressure of water vapour))/(287*Vapor density) Go
Vapour Density
vapor_density = (Specific Humidity*(Total pressure of moist air-Pressure of water vapour))/(287*Dry Bulb Temperature) Go
Partial pressure of vapor given vapor density
pressure_of_water_vapour = Total pressure of moist air-((Vapor density*287*Dry Bulb Temperature)/Specific Humidity) Go
Specific Humidity given vapor density
specific_humidity = (Vapor density*Dry Bulb Temperature*287)/(Total pressure of moist air-Pressure of water vapour) Go
Total pressure of moist air given vapour density
total_pressure_mixture = ((Vapor density*287*Dry Bulb Temperature)/Specific Humidity)+Pressure of water vapour Go
Partial pressure of dry air given vapor density
Partial_pressure_dry_air = (Vapor density*287*Dry Bulb Temperature)/Specific Humidity Go

Vapour Density Formula

vapor_density = (Specific Humidity*(Total pressure of moist air-Pressure of water vapour))/(287*Dry Bulb Temperature)
ρv = (ω*(pt-pv))/(287*td)

What is Vapor density?

Vapor density is defined as the mass of water vapor present in 1 cubic meter of dry air. It is also called absolute humidity.

How to Calculate Vapour Density?

Vapour Density calculator uses vapor_density = (Specific Humidity*(Total pressure of moist air-Pressure of water vapour))/(287*Dry Bulb Temperature) to calculate the Vapor density, The Vapour Density formula calculates the vapor density which is the mass of water vapor present in 1 cubic meter of dry air. Vapor density is denoted by ρv symbol.

How to calculate Vapour Density using this online calculator? To use this online calculator for Vapour Density, enter Specific Humidity (ω), Total pressure of moist air (pt), Pressure of water vapour (pv) & Dry Bulb Temperature (td) and hit the calculate button. Here is how the Vapour Density calculation can be explained with given input values -> 139.3728 = (1*(10000000-6000000))/(287*100).

FAQ

What is Vapour Density?
The Vapour Density formula calculates the vapor density which is the mass of water vapor present in 1 cubic meter of dry air and is represented as ρv = (ω*(pt-pv))/(287*td) or vapor_density = (Specific Humidity*(Total pressure of moist air-Pressure of water vapour))/(287*Dry Bulb Temperature). Specific Humidity is the ratio of the mass of water vapor to the total mass of the air parcel, Total pressure of moist air is the pressure exerted by the mixture of air and water vapour which is equal to the sum of the respected pressures. It is also called barometric pressure, Pressure of water vapour is the pressure exerted by the water vapour in the moist air or the mixture of dry air and water vapour & Dry bulb temperature is the temperature of air measured by a thermometer freely exposed to the air but shielded from radiation and moisture.
How to calculate Vapour Density?
The Vapour Density formula calculates the vapor density which is the mass of water vapor present in 1 cubic meter of dry air is calculated using vapor_density = (Specific Humidity*(Total pressure of moist air-Pressure of water vapour))/(287*Dry Bulb Temperature). To calculate Vapour Density, you need Specific Humidity (ω), Total pressure of moist air (pt), Pressure of water vapour (pv) & Dry Bulb Temperature (td). With our tool, you need to enter the respective value for Specific Humidity, Total pressure of moist air, Pressure of water vapour & Dry Bulb Temperature 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 Vapor density?
In this formula, Vapor density uses Specific Humidity, Total pressure of moist air, Pressure of water vapour & Dry Bulb Temperature. We can use 6 other way(s) to calculate the same, which is/are as follows -
  • vapor_density = (Specific Humidity*(Total pressure of moist air-Pressure of water vapour))/(287*Dry Bulb Temperature)
  • Dry_bulb_tempertaure = (Specific Humidity*(Total pressure of moist air-Pressure of water vapour))/(287*Vapor density)
  • specific_humidity = (Vapor density*Dry Bulb Temperature*287)/(Total pressure of moist air-Pressure of water vapour)
  • pressure_of_water_vapour = Total pressure of moist air-((Vapor density*287*Dry Bulb Temperature)/Specific Humidity)
  • Partial_pressure_dry_air = (Vapor density*287*Dry Bulb Temperature)/Specific Humidity
  • total_pressure_mixture = ((Vapor density*287*Dry Bulb Temperature)/Specific Humidity)+Pressure of water vapour
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