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The National Ambient Air Quality Standard (NAAQS) for ozone (O3) is 0.070 ppm, (8-hr average) and for Nitrogen Dioxyde (NO2) is 53 ppb, (annual mean). (a) Convert the concentrations of O3 and NO2 in µg/m³ assuming an air temperature of 25°C. (b) Convert the concentrations of O3 and NO2 in moles O3 per 106 moles of air? (c) PM2.5 concentrations are only expressed in mass/volume units such as µg/m³. Why?

The National Ambient Air Quality Standard (NAAQS) for ozone (O3) is 0.070 ppm, (8-hr average) and for Nitrogen Dioxyde (NO2) is 53 ppb, (annual mean). (a) Convert the concentrations of O3 and NO2 in µg/m³ assuming an air temperature of 25°C. (b) Convert the concentrations of O3 and NO2 in moles O3 per 106 moles of air? (c) PM2.5 concentrations are only expressed in mass/volume units such as µg/m³. Why?

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
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Problem 8. The National Ambient Air Quality Standard (NAAQS) for ozone (O3) is 0.070 ppm, (8-hr average) and for Nitrogen Dioxyde (NO2) is 53 ppby (annual mean). (a) Convert the concentrations of O3 and NO2 in ug/m³ assuming an air temperature of 25°C. (b) Convert the concentrations of O3 and NO2 in moles O3 per 106 moles of air? (c) PM2.5 concentrations are only expressed in mass/volume units such as µg/m³. Why?
Transcribed Image Text:Problem 8. The National Ambient Air Quality Standard (NAAQS) for ozone (O3) is 0.070 ppm, (8-hr average) and for Nitrogen Dioxyde (NO2) is 53 ppby (annual mean). (a) Convert the concentrations of O3 and NO2 in ug/m³ assuming an air temperature of 25°C. (b) Convert the concentrations of O3 and NO2 in moles O3 per 106 moles of air? (c) PM2.5 concentrations are only expressed in mass/volume units such as µg/m³. Why?
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