665 
e de d'e 
diffuse, through the section «+ dr a quantity — D, & oe en de) 
av KH 
in the direction of increasing 2. The quantity of chlorine ions, 
which is deposited as AgCl is, therefore, the difference between the 
Se a*c, 
two quantities D, aa da. 
wv 
In the same way a quantity of silver ions is deposited equal to 
de 
D, — 
„de; these two are equal, hence: 
ax 
BAP le Yt a AD 
ee Eeke 27 
„=p + Ae + Binwhiche, =— - - - (27) 
The values of A and B are found in the following way : 
2 axe 
For «=0 c¢,=Ciq and c, = Coq, the concentration of Cl, resp. 
+ 
Ag at the anode, 
Di | D, 
hence Ca == Ds an B, BS Cod Dee 
for «=d e‚=0, and c,=C,, the concentration of Cl, resp. 
ates . 
Ag in the solution. 
dels Di PD, 
Co = = Ci +. Ad + Con = = Clas 
2 Dz 
Be GD ( D ) 
lt nd C0 eer ee 
Ds Dos 
igi ee A beata Jade 
If we now call the current density maintained by the diffusion 
of the chlorine ions d, and that maintained by the diffusion of the 
silver ions d,, then: 
de 
urn (7) EA ek EEN 
da vd 
de 
gege) EE eed DE 
© )r=0 
and the total current density 
