Hello everybody
I would like to know the potential of two electrode.
1- The first is the electrode of Ag/Ag+ in a saturated solution of NaCl
I think that the pKs of AgCL is 9.8 (is it right?)
So
E= E0+0.06log[(Ks)1/2]
E=0.8-0.506
E=0.506 vs ENH
Is it correct? (in a book I found a...
Thank you for your help
I have done the change you propose
So now if Iunderstand C(r,t) becomes C(n)
I found a similar differential equation that the one you propose (n2 instead of n)
-1/2 n dC/n = 1/n2 d/dn(n2 dC/dn)
Are you agree with this one?
And then
nd2C/dn2 +...
Hello every body
I have previously post my question in this topic:
Physics Help and Math Help - Physics Forums > Science Education > Homework & Coursework Questions > Other Sciences > Fick and Cottrell Law
And after Goku suggestion I post my question here.
So my problem deal with the...
Thank you for your help
Your answer solve one part of my problem.
I made a mistake for the expression of current density, Goku you are right.
Thanks to you I solve one part of my problem
I found this solution for planar diffusion (not me, in a chemistry book)
C(x,t)=C0erf(x/(Dt)1/2)...
Hello everybody
I have got an electrochemistry probleme
In the case of a planar electrode (one dimension) the current density is proportinnal to the concentration of electroactive species: i=-nFkC C depending of time
From Fick law dC/dt=Dd2C/d2x we can found Cottrell law: i=-nFAC0(D/PIt)1/2...