Molal Humidity based on Moles of Air and Water Calculator

✖Moles of Water Vapour is defined as the amount(Kmol) of water vapour that is present in the air.ⓘ Moles of Water Vapour [n_Water]			+10% -10%
✖Moles of Bone Dry Air is a sample of air that has no water. A definition of dry air is air that has a low relative humidity.ⓘ Moles of Bone Dry Air [n_Air]			+10% -10%

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

⎘ Copy

👎

Formula

LaTeX

Reset

👍

Download Basics of Humidification Process Formulas PDF PDF Image

Molal Humidity based on Moles of Air and Water Solution

STEP 0: Pre-Calculation Summary

Formula Used

Molal Humidity = Moles of Water Vapour/Moles of Bone Dry Air
H_m = n_Water/n_Air
This formula uses 3 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.
Moles of Water Vapour - (Measured in Mole) - Moles of Water Vapour is defined as the amount(Kmol) of water vapour that is present in the air.
Moles of Bone Dry Air - (Measured in Mole) - Moles of Bone Dry Air is a sample of air that has no water. A definition of dry air is air that has a low relative humidity.

STEP 1: Convert Input(s) to Base Unit

Moles of Water Vapour: 10 Kilomole --> 10000 Mole (Check conversion here)
Moles of Bone Dry Air: 25 Kilomole --> 25000 Mole (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

H_m = n_Water/n_Air --> 10000/25000

Evaluating ... ...

H_m = 0.4

STEP 3: Convert Result to Output's Unit

0.4 --> No Conversion Required

FINAL ANSWER

0.4 <-- Molal Humidity

(Calculation completed in 00.004 seconds)

You are here -

Home » Engineering » Chemical Engineering » Mass Transfer Operations » Humidification and Dehumidification » Basics of Humidification Process » Molal Humidity based on Moles of Air and Water

Credits

Created by Ayush gupta

University School of Chemical Technology-USCT (GGSIPU), New Delhi

Ayush gupta has created this Calculator and 300+ more calculators!

Verified by Soupayan banerjee

National University of Judicial Science (NUJS), Kolkata

Soupayan banerjee has verified this Calculator and 900+ more calculators!

< Basics of Humidification Process Calculators

Saturation Humidity based on Vapor Pressure

LaTeX 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

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

Percentage Humidity

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

Humid Heat based on Absolute Humidity

LaTeX Go Humid Heat = 1.005+1.88*Absolute Humidity

Molal Humidity based on Moles of Air and Water Formula

LaTeX Go

Molal Humidity = Moles of Water Vapour/Moles of Bone Dry Air
H_m = n_Water/n_Air

What is Molal Humidity?

Molal humidity, denoted as molality, represents the concentration of water vapor in air. It is expressed as the mass of water vapor (in kilograms) per kilogram of dry air, measured in units of mol/kg. Unlike relative humidity, molal humidity is not influenced by temperature and pressure changes, making it a valuable parameter in various scientific and engineering applications, particularly in thermodynamics and the analysis of air-water vapor mixtures. This measurement offers a precise assessment of the moisture content within a given mass of dry air, making it indispensable in fields like meteorology, environmental science, and chemical engineering, where accurate vapor-phase calculations and interactions are essential.

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 Moles of Air and Water?

Molal Humidity based on Moles of Air and Water calculator uses Molal Humidity = Moles of Water Vapour/Moles of Bone Dry Air to calculate the Molal Humidity, The Molal Humidity based on Moles of Air and Water formula is defined as the ratio of moles of vapour(condensable) to the moles of dry(non-condensable) gas. It is another way to express vapour concentration in a gas by using the ratio of moles of vapour to moles of vapour-free gas. Molal Humidity is denoted by H_m symbol.

How to calculate Molal Humidity based on Moles of Air and Water using this online calculator? To use this online calculator for Molal Humidity based on Moles of Air and Water, enter Moles of Water Vapour (n_Water) & Moles of Bone Dry Air (n_Air) and hit the calculate button. Here is how the Molal Humidity based on Moles of Air and Water calculation can be explained with given input values -> 0.4 = 10000/25000.

FAQ

What is Molal Humidity based on Moles of Air and Water?

The Molal Humidity based on Moles of Air and Water formula is defined as the ratio of moles of vapour(condensable) to the moles of dry(non-condensable) gas. It is another way to express vapour concentration in a gas by using the ratio of moles of vapour to moles of vapour-free gas and is represented as H_m = n_Water/n_Air or Molal Humidity = Moles of Water Vapour/Moles of Bone Dry Air. Moles of Water Vapour is defined as the amount(Kmol) of water vapour that is present in the air & Moles of Bone Dry Air is a sample of air that has no water. A definition of dry air is air that has a low relative humidity.

How to calculate Molal Humidity based on Moles of Air and Water?

The Molal Humidity based on Moles of Air and Water formula is defined as the ratio of moles of vapour(condensable) to the moles of dry(non-condensable) gas. It is another way to express vapour concentration in a gas by using the ratio of moles of vapour to moles of vapour-free gas is calculated using Molal Humidity = Moles of Water Vapour/Moles of Bone Dry Air. To calculate Molal Humidity based on Moles of Air and Water, you need Moles of Water Vapour (n_Water) & Moles of Bone Dry Air (n_Air). With our tool, you need to enter the respective value for Moles of Water Vapour & Moles of Bone Dry Air 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 Moles of Water Vapour & Moles of Bone Dry Air. We can use 1 other way(s) to calculate the same, which is/are as follows -

Molal Humidity = Absolute Humidity/0.6207

Home

FREE PDFs

🔍 Search