The Dog patch Skunk Works emits 10 g/h of trimethylamine from a stack 10m high with zero plume rise. The lowest concentration of trimethylamine that the average human being can detect is about 5 x 1 o-7 g/m3 . If the wind is blowing at 2 m/s on a totally overcast night, what is the maximum distance in the exact downwind direction at which one can smell the Dog patch Skunk Works? (This concentration corresponds to 0.02 part per billion; it is as low a concentration as humans can smell for any substance for which the human smell threshold has been measured. Animals like bloodhounds can obviously smell much smaller concentrations than this.)

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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The Dog patch Skunk Works emits 10 g/h of trimethylamine from a stack 10m high with zero plume rise. The lowest concentration of trimethylamine that the average human being can detect is about 5 x 1 o-7 g/m3 . If the wind is blowing at 2 m/s on a totally overcast night, what is the maximum distance in the exact downwind direction at which one can smell the Dog patch Skunk Works? (This concentration corresponds to 0.02 part per billion; it is as low a concentration as humans can smell for any substance for which the human smell threshold has been measured. Animals like bloodhounds can obviously smell much smaller concentrations than this.)

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