18. What pressure do I need to apply, pushing through t

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18. What pressure do I need to apply, pushing through the membrane from barium carbonate 96% ethyl alcohol, so that the flow potential E of the current is 1.9 V? In this case, ξ = 42⋅10 -3 V; the specific electrical conductivity of the medium is ω = 1,1⋅10 -4 Ω -1 ⋅ m -1; the viscosity of the medium is η = 1.2⋅10 -3 Pa⋅s; 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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