A fly ash (ƿ = 1.8 g mL-1) aerosol consists of particles averaging 13 µm in diameter and with a concentration of 800 µg m-3.  Use the average diameter to calculate the settling velocity (cm s-1) and settling rate (g m-2 s-1) of the particles in still air.

Fundamentals Of Analytical Chemistry
9th Edition
ISBN:9781285640686
Author:Skoog
Publisher:Skoog
Chapter34: Miscellaneous Separation Methods
Section: Chapter Questions
Problem 34.9QAP
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Chapter #6, Question #4:

A fly ash (ƿ = 1.8 g mL-1) aerosol consists of particles averaging 13 µm in diameter and with a concentration of 800 µg m-3.  Use the average diameter to calculate the settling velocity (cm s-1) and settling rate (g m-2 s-1) of the particles in still air.

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