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Problem Statement #5: A chemical plant produces 342 cubic meters of waste gas per hour. The waste gas has a density of 1.5 kg per cubic meter, and contains 15 mol% NO2, and the rest air. Per EPA regulations, you must remove 90% of the NO2 in the waste gas before releasing it into the environment. Someone on your team suggests using water to absorb the NO2. If each mole of water can remove 0.25 mol NO2, calculate the feed rate of water needed in kmol/hour. Then calculate the mole fraction of NO, in the exit water stream. Feed rate of water needed = kmol/hr Mole fraction of NO2 in exit =

Problem Statement #5: A chemical plant produces 342 cubic meters of waste gas per hour. The waste gas has a density of 1.5 kg per cubic meter, and contains 15 mol% NO2, and the rest air. Per EPA regulations, you must remove 90% of the NO2 in the waste gas before releasing it into the environment. Someone on your team suggests using water to absorb the NO2. If each mole of water can remove 0.25 mol NO2, calculate the feed rate of water needed in kmol/hour. Then calculate the mole fraction of NO, in the exit water stream. Feed rate of water needed = kmol/hr Mole fraction of NO2 in exit =

Introduction to Chemical Engineering Thermodynamics
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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I am not sure how to approach this problem. I tried making the flow rate to kg/hr but I have no idea where to go from there. Mol% means mole percent.

Problem Statement #5: A chemical plant produces 342 cubic meters of waste gas per hour. The waste gas has a density of 1.5 kg per cubic meter, and contains 15 mol% NO2, and the rest air. Per EPA regulations, you must remove 90% of the NO2 in the waste gas before releasing it into the environment. Someone on your team suggests using water to absorb the NO2. If each mole of water can remove 0.25 mol NO2, calculate the feed rate of water needed in kmol/hour. Then calculate the mole fraction of NO, in the exit water stream. Feed rate of water needed = kmol/hr Mole fraction of NO2 in exit =
Transcribed Image Text:Problem Statement #5: A chemical plant produces 342 cubic meters of waste gas per hour. The waste gas has a density of 1.5 kg per cubic meter, and contains 15 mol% NO2, and the rest air. Per EPA regulations, you must remove 90% of the NO2 in the waste gas before releasing it into the environment. Someone on your team suggests using water to absorb the NO2. If each mole of water can remove 0.25 mol NO2, calculate the feed rate of water needed in kmol/hour. Then calculate the mole fraction of NO, in the exit water stream. Feed rate of water needed = kmol/hr Mole fraction of NO2 in exit =
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