How does diffusion factor in chemical concentrations above a vessel?

Subject: How does diffusion factor in chemical concentrations above a vessel?

Date: Wed Apr 7 13:55:08 1999
Posted by Mickey Pierce
Grade level: nonaligned School: No school entered.
City: Berkeley State/Province: California Country: USA
Area of science: Engineering
ID: 923511308.Eg

Message:


I'm trying to determine how diffusion can be factored in 
calculating the concentraiton of a chemical above a tank.  I can 
adequately determine the equilibrium concentration, but am stuck 
on how to factor in diffusion/air exchange in determining the 
"true" concetration which a person might be exposed to.  Am 
working with a tank of surface area of 15 sq. ft, and equilibruim 
concentrations ranging from 50-3000 mg/m3.  The chemical of 
concern is cyanide (hydrogen cyanide).

Re: How does diffusion factor in chemical concentrations above a vessel?

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