Vapour Density Calculator

✖Specific Humidity is the ratio of the mass of water vapor to the total mass of the air parcel.ⓘ Specific Humidity [ω]			+10% -10%
✖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.ⓘ Total Pressure of Moist Air [p_t]			+10% -10%
✖Pressure of Water Vapor is the pressure exerted by the water vapour in the moist air or the mixture of dry air and water vapour.ⓘ Pressure of Water Vapor [p_v]			+10% -10%
✖Dry bulb temperature is the temperature of air measured by a thermometer freely exposed to the air but shielded from radiation and moisture.ⓘ Dry Bulb Temperature [t_d]			+10% -10%

✖Vapor Density is defined as the mass of water vapor present in 1 m³ of dry air. It is also called absolute humidity.ⓘ Vapour Density [ρ_v]

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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 Vapor))/(287*Dry Bulb Temperature)
ρ_v = (ω*(p_t-p_v))/(287*t_d)
This formula uses 5 Variables

Variables Used

Vapor Density - (Measured in Kilogram per Cubic Meter) - Vapor Density is defined as the mass of water vapor present in 1 m³ of dry air. It is also called absolute humidity.
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 - (Measured in Pascal) - 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 Vapor - (Measured in Pascal) - Pressure of Water Vapor is the pressure exerted by the water vapour in the moist air or the mixture of dry air and water vapour.
Dry Bulb Temperature - (Measured in Kelvin) - Dry bulb temperature is the temperature of air measured by a thermometer freely exposed to the air but shielded from radiation and moisture.

STEP 1: Convert Input(s) to Base Unit

Specific Humidity: 0.25 --> No Conversion Required
Total Pressure of Moist Air: 189 Bar --> 18900000 Pascal (Check conversion here)
Pressure of Water Vapor: 60 Bar --> 6000000 Pascal (Check conversion here)
Dry Bulb Temperature: 350 Kelvin --> 350 Kelvin No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

ρ_v = (ω*(p_t-p_v))/(287*t_d) --> (0.25*(18900000-6000000))/(287*350)

Evaluating ... ...

ρ_v = 32.105525136884

STEP 3: Convert Result to Output's Unit

32.105525136884 Kilogram per Cubic Meter --> No Conversion Required

FINAL ANSWER

32.105525136884 ≈ 32.10553 Kilogram per Cubic Meter <-- Vapor Density

(Calculation completed in 00.004 seconds)

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Created by Ravi Khiyani

Shri Govindram Seksaria Institute of Technology and Science (SGSITS), Indore

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National Institute Of Technology (NIT), Hamirpur

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< Vapour Density Calculators

Dry Bulb Temperature given Vapor Density

LaTeX Go Dry Bulb Temperature = (Specific Humidity*(Total Pressure of Moist Air-Pressure of Water Vapor))/(287*Vapor Density)

Vapour Density

LaTeX Go Vapor Density = (Specific Humidity*(Total Pressure of Moist Air-Pressure of Water Vapor))/(287*Dry Bulb Temperature)

Partial Pressure of Vapor given Vapor Density

LaTeX Go Pressure of Water Vapor = Total Pressure of Moist Air-((Vapor Density*287*Dry Bulb Temperature)/Specific Humidity)

Specific Humidity given Vapor Density

LaTeX Go Specific Humidity = (Vapor Density*Dry Bulb Temperature*287)/(Total Pressure of Moist Air-Pressure of Water Vapor)

Vapour Density Formula

LaTeX Go

Vapor Density = (Specific Humidity*(Total Pressure of Moist Air-Pressure of Water Vapor))/(287*Dry Bulb Temperature)
ρ_v = (ω*(p_t-p_v))/(287*t_d)

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 Vapor))/(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 ρ_v 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 (p_t), Pressure of Water Vapor (p_v) & Dry Bulb Temperature (t_d) and hit the calculate button. Here is how the Vapour Density calculation can be explained with given input values -> 9.955202 = (0.25*(18900000-6000000))/(287*350).

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 ρ_v = (ω*(p_t-p_v))/(287*t_d) or Vapor Density = (Specific Humidity*(Total Pressure of Moist Air-Pressure of Water Vapor))/(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 Vapor 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 Vapor))/(287*Dry Bulb Temperature). To calculate Vapour Density, you need Specific Humidity (ω), Total Pressure of Moist Air (p_t), Pressure of Water Vapor (p_v) & Dry Bulb Temperature (t_d). With our tool, you need to enter the respective value for Specific Humidity, Total Pressure of Moist Air, Pressure of Water Vapor & Dry Bulb Temperature and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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