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Rate of diffusion

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Rate of diffusion

Postby celticboy1 » Sun Feb 12, 2006 7:23 pm

Hey does anyone know the formula for rate of diffusion??? thxs
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Postby 2810712 » Mon Feb 13, 2006 3:07 am

u can get it on NCBI web site-www.ncbi.nlm.nih.gov

enjoy the site!





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Postby army » Tue Feb 14, 2006 1:45 am

No idea.. :?
never get that lesson :roll:
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Postby MrMistery » Tue Feb 14, 2006 6:47 pm

dn/dt=PA(c2-c1)
dn/dt=quantity transported per time unit
P=permeability coeficient
A=the surface of contact where diffusion takes place
c2,c1=concentrations of the stuff on both sides, c2>c1

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Re: Rate of diffusion

Postby minimay14 » Thu Jan 08, 2009 10:55 am

rate of diffusion = surface area x difference in concentration
length of diffusion pathway
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Postby manish94 » Sun Apr 24, 2011 5:45 am

Rate of diffusion(r) = volume of the gas diffuse/time take for diffusion

Rate of diffusion(r) = V/t
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Postby Duece1 » Wed Sep 07, 2011 11:18 am

formula: rate A/rate B=sq. rt. B MM/sq. rt. A MM
want: MM unknown
know: MM 16.04 g/mol CH4

step 1: let x= rate A, CH4= rate B
step 2: plug in values and solve using formula
step 3: ANS

good luck.
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