Partial Pressure of Dry Air given Vapor Density Calculator

✖Vapor Density is defined as the mass of water vapor present in 1 m³ of dry air. It is also called absolute humidity.ⓘ Vapor Density [ρ_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%
✖Specific Humidity is the ratio of the mass of water vapor to the total mass of the air parcel.ⓘ Specific Humidity [ω]			+10% -10%

✖The Partial Pressure of Dry Air is the pressure that is exerted by the dry air in the mixture of dry air and water vapor called moist air.ⓘ Partial Pressure of Dry Air given Vapor Density [p_a]

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Partial Pressure of Dry Air given Vapor Density

Formula

`"p"_{"a"} = ("ρ"_{"v"}*287*"t"_{"d"})/"ω"`

Example

`"128.576Bar"=("32kg/m³"*287*"350K")/"0.25"`

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Partial Pressure of Dry Air given Vapor Density Solution

STEP 0: Pre-Calculation Summary

Formula Used

Partial Pressure of Dry Air = (Vapor Density*287*Dry Bulb Temperature)/Specific Humidity
p_a = (ρ_v*287*t_d)/ω
This formula uses 4 Variables

Variables Used

Partial Pressure of Dry Air - (Measured in Pascal) - The Partial Pressure of Dry Air is the pressure that is exerted by the dry air in the mixture of dry air and water vapor called moist air.
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.
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.
Specific Humidity - Specific Humidity is the ratio of the mass of water vapor to the total mass of the air parcel.

STEP 1: Convert Input(s) to Base Unit

Vapor Density: 32 Kilogram per Cubic Meter --> 32 Kilogram per Cubic Meter No Conversion Required
Dry Bulb Temperature: 350 Kelvin --> 350 Kelvin No Conversion Required
Specific Humidity: 0.25 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

p_a = (ρ_v*287*t_d)/ω --> (32*287*350)/0.25

Evaluating ... ...

p_a = 12857600

STEP 3: Convert Result to Output's Unit

12857600 Pascal -->128.576 Bar (Check conversion here)

FINAL ANSWER

128.576 Bar <-- Partial Pressure of Dry Air

(Calculation completed in 00.004 seconds)

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Created by Ojas Kulkarni

Sardar Patel College of Engineering (SPCE), Mumbai

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National Institute Of Technology (NIT), Hamirpur

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< 6 Vapour Density Calculators

Dry Bulb Temperature given Vapor Density

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

Vapour Density

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

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

Specific Humidity given Vapor Density

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

Total Pressure of Moist Air given Vapour Density

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

Partial Pressure of Dry Air given Vapor Density

Go Partial Pressure of Dry Air = (Vapor Density*287*Dry Bulb Temperature)/Specific Humidity

Partial Pressure of Dry Air given Vapor Density Formula

Partial Pressure of Dry Air = (Vapor Density*287*Dry Bulb Temperature)/Specific Humidity
p_a = (ρ_v*287*t_d)/ω

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 Partial Pressure of Dry Air given Vapor Density?

Partial Pressure of Dry Air given Vapor Density calculator uses Partial Pressure of Dry Air = (Vapor Density*287*Dry Bulb Temperature)/Specific Humidity to calculate the Partial Pressure of Dry Air, The Partial pressure of dry air given vapor density formula calculates the pressure of dry air exerted by dry air in the air-vapor mixture by using the vapor density. Partial Pressure of Dry Air is denoted by p_a symbol.

How to calculate Partial Pressure of Dry Air given Vapor Density using this online calculator? To use this online calculator for Partial Pressure of Dry Air given Vapor Density, enter Vapor Density (ρ_v), Dry Bulb Temperature (t_d) & Specific Humidity (ω) and hit the calculate button. Here is how the Partial Pressure of Dry Air given Vapor Density calculation can be explained with given input values -> 0.001286 = (32*287*350)/0.25.

FAQ

What is Partial Pressure of Dry Air given Vapor Density?

The Partial pressure of dry air given vapor density formula calculates the pressure of dry air exerted by dry air in the air-vapor mixture by using the vapor density and is represented as p_a = (ρ_v*287*t_d)/ω or Partial Pressure of Dry Air = (Vapor Density*287*Dry Bulb Temperature)/Specific Humidity. Vapor Density is defined as the mass of water vapor present in 1 m³ of dry air. It is also called absolute humidity, Dry bulb temperature is the temperature of air measured by a thermometer freely exposed to the air but shielded from radiation and moisture & Specific Humidity is the ratio of the mass of water vapor to the total mass of the air parcel.

How to calculate Partial Pressure of Dry Air given Vapor Density?

The Partial pressure of dry air given vapor density formula calculates the pressure of dry air exerted by dry air in the air-vapor mixture by using the vapor density is calculated using Partial Pressure of Dry Air = (Vapor Density*287*Dry Bulb Temperature)/Specific Humidity. To calculate Partial Pressure of Dry Air given Vapor Density, you need Vapor Density (ρ_v), Dry Bulb Temperature (t_d) & Specific Humidity (ω). With our tool, you need to enter the respective value for Vapor Density, Dry Bulb Temperature & Specific Humidity 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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