10. Construct a curve of the ξ-potential change at

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10. Construct a curve of the ξ-potential change at the boundary of the quartz membrane-KCl solution depending on the pore diameter of the membrane, if the following experimental data were obtained for electroosmosis:
 
Pore diameter d⋅10 6, m 2.0 5.0 10.0 25.0
Volumetric velocity V⋅10 10, m 3 / s 9.5 18.7 27.3 35.5
 
The specific electrical conductivity of the medium is ω = 1.5⋅10 -3 Ω -1 ⋅ m -1; the viscosity of the medium
η η = 10 -3 Pa · s; current intensity J = 2⋅10 -5 A; ε = 81; ε 0 = 8.85⋅10 -12 F / m.

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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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