In the aeration of wastewater, liquid-gas contact systems are designed to raise the concentration toward equilibrium levels. This goal is accomplished by dispersing air bubbles into the water. An aqueous solution, initially containing 2 x 10 -3 kg O2 /100 kg H2O is brought into contact with a large volume of ordinary air at 293 K and a total pressure of 1.013 x 10 5 Pa. At 293 K, the Henry’s law constant for the oxygen–water system equals 4.06 x 10 9 Pa/mol fraction of oxygen in the liquid. a.) Will the solution gain or lose oxygen? b.) What will be the concentration of oxygen in the final equilibrium solution in kg O2 per 100 kg H2O?
In the aeration of wastewater, liquid-gas contact systems are designed to raise the concentration toward equilibrium levels. This goal is accomplished by dispersing air bubbles into the water. An aqueous solution, initially containing 2 x 10 -3 kg O2 /100 kg H2O is brought into contact with a large volume of ordinary air at 293 K and a total pressure of 1.013 x 10 5 Pa. At 293 K, the Henry’s law constant for the oxygen–water system equals 4.06 x 10 9 Pa/mol fraction of oxygen in the liquid. a.) Will the solution gain or lose oxygen? b.) What will be the concentration of oxygen in the final equilibrium solution in kg O2 per 100 kg H2O?
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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In the aeration of wastewater, liquid-gas contact systems are designed to raise the concentration toward
equilibrium levels. This goal is accomplished by dispersing air bubbles into the water. An aqueous solution,
initially containing 2 x 10 -3 kg O2 /100 kg H2O is brought into contact with a large volume of ordinary air at 293
K and a total pressure of 1.013 x 10 5 Pa. At 293 K, the Henry’s law constant for the oxygen–water system
equals 4.06 x 10 9 Pa/mol fraction of oxygen in the liquid.
a.) Will the solution gain or lose oxygen?
b.) What will be the concentration of oxygen in the final equilibrium solution in kg O2 per 100 kg H2O?
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