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Specific Humidity given Vapor Density Formula

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Specific Humidity is the ratio of the mass of water vapor to the total mass of the air parcel. Check FAQs

ω = \frac{ρ v \cdot t d \cdot 287}{p t - p v}

ω - Specific Humidity?ρ_v - Vapor Density?t_d - Dry Bulb Temperature?p_t - Total Pressure of Moist Air?p_v - Pressure of Water Vapor?

Specific Humidity given Vapor Density Example

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Here is how the Specific Humidity given Vapor Density equation looks like with Values.

Here is how the Specific Humidity given Vapor Density equation looks like with Units.

Here is how the Specific Humidity given Vapor Density equation looks like.

0.2492 = \frac{32 \cdot 350 \cdot 287}{189 - 60}

0.2492 = \frac{32kg/m³ \cdot 350K \cdot 287}{189Bar - 60Bar}

0.2492 = \frac{32 \cdot 350 \cdot 287}{189 - 60}

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Specific Humidity given Vapor Density Solution

Follow our step by step solution on how to calculate Specific Humidity given Vapor Density?

FIRST Step Consider the formula

ω = \frac{ρ v \cdot t d \cdot 287}{p t - p v}

Next Step Substitute values of Variables

∴

ω = \frac{32kg/m³ \cdot 350K \cdot 287}{189Bar - 60Bar}

Next Step Convert Units

∴

ω = \frac{32kg/m³ \cdot 350K \cdot 287}{1.9E+7Pa - 6E+6Pa}

Next Step Prepare to Evaluate

∴

ω = \frac{32 \cdot 350 \cdot 287}{1.9E+7 - 6E+6}

Next Step Evaluate

∴

ω = 0.249178294573643

LAST Step Rounding Answer

∴

ω = 0.2492

Specific Humidity given Vapor Density Formula Elements

Variables

Specific Humidity

Specific Humidity is the ratio of the mass of water vapor to the total mass of the air parcel.

Symbol: ω

Measurement: NAUnit: Unitless

Note: Value should be between 0 to 1.

Formulas to find Specific Humidity

Vapor Density

Vapor Density is defined as the mass of water vapor present in 1 m³ of dry air. It is also called absolute humidity.

Symbol: ρ_v

Measurement: DensityUnit: kg/m³

Note: Value can be positive or negative.

Formulas to find Vapor Density

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.

Symbol: t_d

Measurement: TemperatureUnit: K

Note: Value can be positive or negative.

Formulas to find Dry Bulb Temperature

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.

Symbol: p_t

Measurement: PressureUnit: Bar

Note: Value can be positive or negative.

Formulas to find Total Pressure of Moist Air

Pressure of Water Vapor

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.

Symbol: p_v

Measurement: PressureUnit: Bar

Note: Value can be positive or negative.

Formulas to find Pressure of Water Vapor

Other formulas in Vapour Density category

Go Vapour Density

ρ v = \frac{ω \cdot (p t - p v)}{287 \cdot t d}

Go Dry Bulb Temperature given Vapor Density

t d = \frac{ω \cdot (p t - p v)}{287 \cdot ρ v}

Go Partial Pressure of Vapor given Vapor Density

p v = p t - (\frac{ρ v \cdot 287 \cdot t d}{ω})

Go Partial Pressure of Dry Air given Vapor Density

p a = \frac{ρ v \cdot 287 \cdot t d}{ω}

How to Evaluate Specific Humidity given Vapor Density?

Specific Humidity given Vapor Density evaluator uses Specific Humidity = (Vapor Density*Dry Bulb Temperature*287)/(Total Pressure of Moist Air-Pressure of Water Vapor) to evaluate the Specific Humidity, The Specific Humidity given vapor density formula calculates the specific humidity which is the mass of water vapor in a unit mass of moist air. Specific Humidity is denoted by ω symbol.

How to evaluate Specific Humidity given Vapor Density using this online evaluator? To use this online evaluator for Specific Humidity given Vapor Density, enter Vapor Density (ρ_v), Dry Bulb Temperature (t_d), Total Pressure of Moist Air (p_t) & Pressure of Water Vapor (p_v) and hit the calculate button.

FAQs on Specific Humidity given Vapor Density

What is the formula to find Specific Humidity given Vapor Density?

The formula of Specific Humidity given Vapor Density is expressed as Specific Humidity = (Vapor Density*Dry Bulb Temperature*287)/(Total Pressure of Moist Air-Pressure of Water Vapor). Here is an example- 0.8036 = (32*350*287)/(18900000-6000000).

How to calculate Specific Humidity given Vapor Density?

With Vapor Density (ρ_v), Dry Bulb Temperature (t_d), Total Pressure of Moist Air (p_t) & Pressure of Water Vapor (p_v) we can find Specific Humidity given Vapor Density using the formula - Specific Humidity = (Vapor Density*Dry Bulb Temperature*287)/(Total Pressure of Moist Air-Pressure of Water Vapor).

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Specific Humidity given Vapor Density Formula

Specific Humidity given Vapor Density Example

Specific Humidity given Vapor Density Solution

Specific Humidity given Vapor Density Formula Elements

Other formulas in Vapour Density category

How to Evaluate Specific Humidity given Vapor Density?

FAQs on Specific Humidity given Vapor Density

Variable Name