Biology Forum › Cell Biology › Rate of diffusion

last updated by Duece1 12 years, 7 months ago
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    • February 12, 2006 at 7:23 pm #3604
      celticboy1
      Participant

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

    • February 13, 2006 at 3:07 am #40679
      2810712
      Participant

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

      enjoy the site!

      hrushikesh

    • February 14, 2006 at 1:45 am #40826
      army
      Participant

      No idea.. 😕
      never get that lesson 🙄

    • February 14, 2006 at 6:47 pm #40904
      MrMistery
      Participant

      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??

    • January 8, 2009 at 10:55 am #88293
      minimay14
      Participant

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

    • April 24, 2011 at 5:45 am #104605
      manish94
      Participant

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

      Rate of diffusion(r) = V/t

    • September 7, 2011 at 11:18 am #106212
      Duece1
      Participant

      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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