Air at 30 C and 150 kPa in a closed container is compressed and cooled. It is found that the first droplet of water condenses at 200 kPa and 15 C. Calculate the percent relative humidity of the original air. The vapor pressures of water at 15 C and 30 C are 1.7051 kPa and 4.246 kPa respectively.
Air at 30 C and 150 kPa in a closed container is compressed and cooled. It is found that the first droplet of water condenses at 200 kPa and 15 C. Calculate the percent relative humidity of the original air. The vapor pressures of water at 15 C and 30 C are 1.7051 kPa and 4.246 kPa respectively.
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
Section: Chapter Questions
Problem 1.1P
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ChemEngg PYQ :
Air at 30 C and 150 kPa in a closed container is compressed and cooled.
It is found that the first droplet of water condenses at 200 kPa and 15 C.
Calculate the percent relative humidity of the original air.
The vapor pressures of water at 15 C and 30 C are 1.7051 kPa and 4.246 kPa respectively.
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Step 1: Understand the Concept of Relative Humidity and Vapor Pressure
VIEWStep 2: Calculate the Moles of Water Vapor per Mole of Dry Air at Saturation
VIEWStep 3: Determine the Partial Pressure of Water Vapor at Original Conditions
VIEWStep 4: Compute the Percentage Relative Humidity of the Original Air
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