Molal Humidity based on Absolute Humidity Calculator

✖Molal Humidity is defined as the ratio of moles of vapour(condensable) to the moles of dry(non-condensable) gas.ⓘ Molal Humidity based on Absolute Humidity [H_m]

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Molal Humidity based on Absolute Humidity

Formula

`"H"_{"m"} = "AH"/0.6207`

Example

`"0.966651"="0.6kg/kg of air"/0.6207`

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Molal Humidity based on Absolute Humidity Solution

STEP 0: Pre-Calculation Summary

Formula Used

Molal Humidity = Absolute Humidity/0.6207
H_m = AH/0.6207
This formula uses 2 Variables

Variables Used

Molal Humidity - Molal Humidity is defined as the ratio of moles of vapour(condensable) to the moles of dry(non-condensable) gas.
Absolute Humidity - (Measured in Kg of water vapour per Kg of air) - Absolute Humidity is the actual amount of water vapor present in the air, regardless of the temperature.

STEP 1: Convert Input(s) to Base Unit

Absolute Humidity: 0.6 Kg of water vapour per Kg of air --> 0.6 Kg of water vapour per Kg of air No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

H_m = AH/0.6207 --> 0.6/0.6207

Evaluating ... ...

H_m = 0.96665055582407

STEP 3: Convert Result to Output's Unit

0.96665055582407 --> No Conversion Required

FINAL ANSWER

0.96665055582407 ≈ 0.966651 <-- Molal Humidity

(Calculation completed in 00.004 seconds)

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Home » Engineering » Chemical Engineering » Mass Transfer Operations » Humidification & Dehumidification » Basics of Humidification Process » Molal Humidity based on Absolute Humidity

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Created by Vaibhav Mishra

DJ Sanghvi College of Engineering (DJSCE), Mumbai

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< 19 Basics of Humidification Process Calculators

Temperature based on Absolute Humidity and Humid Volume

Go Temperature of Air = ((273.15*(Humid Volume of Air/22.4))/((1/28.97)+(Absolute Humidity/18.02)))-273.15

Humid Volume based on Absolute Humidity and Temperature

Go Humid Volume of Air = ((1/28.97)+(Absolute Humidity/18.02))*22.4*((Temperature of Air+273.15)/273.15)

Absolute Humidity based on Humid Volume and Temperature

Go Absolute Humidity = 18.02*((Humid Volume of Air/22.4)*(273.15/(Temperature of Air+273.15))-(1/28.97))

Saturation Humidity based on Vapor Pressure

Go Saturation Humidity = (0.6207)*(Vapour Pressure of Water at DBT/(1-Vapour Pressure of Water at DBT))

Absolute Humidity based on Weight of Air

Go Absolute Humidity = (Weight of Water Vapour/Weight of Bone Dry Air)

Absolute Humidity based on Percentage and Saturation Humidity

Go Absolute Humidity = (Percentage Humidity/100)*Saturation Humidity

Saturation Humidity based on Percentage and Absolute Humidity

Go Saturation Humidity = Absolute Humidity*(100/Percentage Humidity)

Weight of Water Vapour based on Absolute Humidity

Go Weight of Water Vapour = Absolute Humidity*Weight of Bone Dry Air

Weight of Air based on Absolute Humidity

Go Weight of Bone Dry Air = Weight of Water Vapour/Absolute Humidity

Percentage Humidity

Go Percentage Humidity = (Absolute Humidity/Saturation Humidity)*100

Molal Humidity based on Moles of Air and Water

Go Molal Humidity = Moles of Water Vapour/Moles of Bone Dry Air

Moles of Water Vapour based on Molal Humidity

Go Moles of Water Vapour = Molal Humidity*Moles of Bone Dry Air

Moles of Air based on Molal Humidity

Go Moles of Bone Dry Air = Moles of Water Vapour/Molal Humidity

Mixing Ratio on Basis of Specific Humidity

Go Mixing Ratio = Specific Humidity/(1-Specific Humidity)

Specific Humidity on Basis of Mixing Ratio

Go Specific Humidity = Mixing Ratio/(1+Mixing Ratio)

Absolute Humidity based on Humid Heat

Go Absolute Humidity = (Humid Heat-1.006)/1.84

Absolute Humidity on Basis of Molal Humidity

Go Absolute Humidity = 0.6207*Molal Humidity

Molal Humidity based on Absolute Humidity

Go Molal Humidity = Absolute Humidity/0.6207

Humid Heat based on Absolute Humidity

Go Humid Heat = 1.005+1.88*Absolute Humidity

Molal Humidity based on Absolute Humidity Formula

Molal Humidity = Absolute Humidity/0.6207
H_m = AH/0.6207

What is Absolute Humidity?

Absolute humidity is a measure of the actual amount of water vapor present in a unit volume of air, usually expressed in grams per cubic meter (g/m³) or grains per cubic foot (gr/ft³). It provides a direct measurement of the quantity of water vapor in the air, regardless of temperature. Unlike relative humidity, which is a percentage that varies with temperature, absolute humidity offers a fixed and specific value, making it crucial in various applications such as meteorology, HVAC, and industrial processes where precise moisture content assessment is essential for comfort, health, and operational considerations.

What is Humidification Process?

The humidification process involves adding moisture to indoor air to increase its relative humidity. It begins by measuring the current humidity level using a hygrometer. A desired humidity level is set, typically between 30% and 60%. Different humidification methods like evaporative, steam, or ultrasonic are chosen based on space requirements. The humidifier, often equipped with a humidistat, is then operated to release moisture. As the humidifier maintains the setpoint, it continuously monitors and controls humidity levels. Regular maintenance is essential to prevent issues and ensure safe and effective operation, especially in dry environments or during winter when indoor heating can dry out the air.

How to Calculate Molal Humidity based on Absolute Humidity?

Molal Humidity based on Absolute Humidity calculator uses Molal Humidity = Absolute Humidity/0.6207 to calculate the Molal Humidity, The Molal Humidity based on Absolute Humidity formula is defined as the ratio of absolute humidity (based on weights) to the conversion factor of weight to moles for air and water. Molal Humidity is denoted by H_m symbol.

How to calculate Molal Humidity based on Absolute Humidity using this online calculator? To use this online calculator for Molal Humidity based on Absolute Humidity, enter Absolute Humidity (AH) and hit the calculate button. Here is how the Molal Humidity based on Absolute Humidity calculation can be explained with given input values -> 0.966651 = 0.6/0.6207.

FAQ

What is Molal Humidity based on Absolute Humidity?

The Molal Humidity based on Absolute Humidity formula is defined as the ratio of absolute humidity (based on weights) to the conversion factor of weight to moles for air and water and is represented as H_m = AH/0.6207 or Molal Humidity = Absolute Humidity/0.6207. Absolute Humidity is the actual amount of water vapor present in the air, regardless of the temperature.

How to calculate Molal Humidity based on Absolute Humidity?

The Molal Humidity based on Absolute Humidity formula is defined as the ratio of absolute humidity (based on weights) to the conversion factor of weight to moles for air and water is calculated using Molal Humidity = Absolute Humidity/0.6207. To calculate Molal Humidity based on Absolute Humidity, you need Absolute Humidity (AH). With our tool, you need to enter the respective value for Absolute Humidity 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 Molal Humidity?

In this formula, Molal Humidity uses Absolute Humidity. We can use 1 other way(s) to calculate the same, which is/are as follows -

Molal Humidity = Moles of Water Vapour/Moles of Bone Dry Air

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