## Rate of diffusion

Discussion of all aspects of cellular structure, physiology and communication.

celticboy1
Garter
Posts: 7
Joined: Sun Jan 01, 2006 2:17 am

### Rate of diffusion

Hey does anyone know the formula for rate of diffusion??? thxs

2810712
King Cobra
Posts: 697
Joined: Thu Jan 20, 2005 12:19 pm
u can get it on NCBI web site-www.ncbi.nlm.nih.gov

enjoy the site!

hrushikesh

army
Garter
Posts: 40
Joined: Thu Feb 02, 2006 8:57 am
No idea..
never get that lesson

MrMistery
Inland Taipan
Posts: 6832
Joined: Thu Mar 03, 2005 10:18 pm
Location: Romania(small and unimportant country)
Contact:
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

IS this what you need??
"As a biologist, I firmly believe that when you're dead, you're dead. Except for what you live behind in history. That's the only afterlife" - J. Craig Venter

minimay14
Garter
Posts: 1
Joined: Thu Jan 08, 2009 7:39 am

### Re: Rate of diffusion

rate of diffusion = surface area x difference in concentration
length of diffusion pathway

manish94
Garter
Posts: 11
Joined: Fri Apr 22, 2011 3:06 pm
Rate of diffusion(r) = volume of the gas diffuse/time take for diffusion

Rate of diffusion(r) = V/t

Duece1
Garter
Posts: 2
Joined: Wed Sep 07, 2011 9:33 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.

### Who is online

Users browsing this forum: Bing [Bot] and 1 guest