What are the differences among absolute humidity, relative humidity, and percentage humidity?

Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
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What are the differences among absolute humidity, relative humidity, and percentage humidity?

Expert Solution
Step 1

The differences between absolute humidity, relative humidity, and percentage humidity are to be mentioned.

Step 2

ABSOLUTE HUMIDITY:-

It is given as mass of water vapor per unit mass of dry gas.

                                         Chemical Engineering homework question answer, step 2, image 1

Y' = Absolute humidity

pA = Partial pressure of water vapor in air

P = Total pressure

                                                

 

Step 3

The absolute humidity is measure in g/m3.

It directly measures the amount of moisture in a gas.

It does not depend on temperature.

 

 

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