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Partial Pressure of Vapor given Vapor Density Formula

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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. Check FAQs

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

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

Partial Pressure of Vapor given Vapor Density Example

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Here is how the Partial Pressure of Vapor given Vapor Density equation looks like with Values.

Here is how the Partial Pressure of Vapor given Vapor Density equation looks like with Units.

Here is how the Partial Pressure of Vapor given Vapor Density equation looks like.

60.424 = 189 - (\frac{32 \cdot 287 \cdot 350}{0.25})

60.424Bar = 189Bar - (\frac{32kg/m³ \cdot 287 \cdot 350K}{0.25})

60.424 = 189 - (\frac{32 \cdot 287 \cdot 350}{0.25})

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Partial Pressure of Vapor given Vapor Density Solution

Follow our step by step solution on how to calculate Partial Pressure of Vapor given Vapor Density?

FIRST Step Consider the formula

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

Next Step Substitute values of Variables

∴

p v = 189Bar - (\frac{32kg/m³ \cdot 287 \cdot 350K}{0.25})

Next Step Convert Units

∴

p v = 1.9E+7Pa - (\frac{32kg/m³ \cdot 287 \cdot 350K}{0.25})

Next Step Prepare to Evaluate

∴

p v = 1.9E+7 - (\frac{32 \cdot 287 \cdot 350}{0.25})

Next Step Evaluate

∴

p v = 6042400Pa

LAST Step Convert to Output's Unit

∴

p v = 60.424Bar

Partial Pressure of Vapor given Vapor Density Formula Elements

Variables

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

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

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

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

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 Specific Humidity given Vapor Density

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

Go Partial Pressure of Dry Air given Vapor Density

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

How to Evaluate Partial Pressure of Vapor given Vapor Density?

Partial Pressure of Vapor given Vapor Density evaluator uses Pressure of Water Vapor = Total Pressure of Moist Air-((Vapor Density*287*Dry Bulb Temperature)/Specific Humidity) to evaluate the Pressure of Water Vapor, The Partial pressure of vapor given vapor density formula calculates the pressure exerted by the water vapor in the air-vapor mixture by using vapor density. Pressure of Water Vapor is denoted by p_v symbol.

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

FAQs on Partial Pressure of Vapor given Vapor Density

What is the formula to find Partial Pressure of Vapor given Vapor Density?

The formula of Partial Pressure of Vapor given Vapor Density is expressed as Pressure of Water Vapor = Total Pressure of Moist Air-((Vapor Density*287*Dry Bulb Temperature)/Specific Humidity). Here is an example- -0.000286 = 18900000-((32*287*350)/0.25).

How to calculate Partial Pressure of Vapor given Vapor Density?

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

Can the Partial Pressure of Vapor given Vapor Density be negative?

Yes, the Partial Pressure of Vapor given Vapor Density, measured in Pressure can be negative.

Which unit is used to measure Partial Pressure of Vapor given Vapor Density?

Partial Pressure of Vapor given Vapor Density is usually measured using the Bar[Bar] for Pressure. Pascal[Bar], Kilopascal[Bar], Pound Per Square Inch[Bar] are the few other units in which Partial Pressure of Vapor given Vapor Density can be measured.

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Partial Pressure of Vapor given Vapor Density Formula

Partial Pressure of Vapor given Vapor Density Example

Partial Pressure of Vapor given Vapor Density Solution

Partial Pressure of Vapor given Vapor Density Formula Elements

Other formulas in Vapour Density category

How to Evaluate Partial Pressure of Vapor given Vapor Density?

FAQs on Partial Pressure of Vapor given Vapor Density

Variable Name