7. Calculate the value of the ξ-potential at the b

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7. Calculate the value of the ξ-potential at the boundary of the aqueous solution of KCl-
a polystyrene membrane, if in the process of electroosmosis the space velocity
was equal to 15⋅10 -10 m3 / s; current intensity J = 7⋅10 -3 A; conductivity
the medium is ω = 9⋅10 -2 Ω -1 ⋅ m -1; viscosity of the medium η = 10 -3 Pa · s; ε 0 = 8.85⋅10 -12 F / m;
ε = 81.

Additional information

Questions and problems from the manual:
"Laboratory Workshop on Colloid Chemistry" Nekrasov AP, Veretenchenko BA, Kharkov NTU "KhPI", 2004
"Characteristic properties of disperse systems" Nekrasov AP, Kharkov, 1996
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