131. Задачка по химии №013 153

20. Construct a curve of the dependence of the ξ-potential on the pore diameter of the corundum diaphragm in KCl solution, using the following experimental data of electroosmosis:
 
The pore diameter is d⋅10 6, m 3.0 10.0 25.0 75.0 100.0
Volumetric velocity V⋅10 8, m 3 / s 2.0 3.2 3.9 4.0 4.05
 
Current strength J = 2⋅10 -2 A; ε = 81; ε 0 = 8.85⋅10 -12 F / m; the specific electrical conductivity of the medium is ω = 1.3⋅10 -2 Ω -1 ⋅ m -1; the viscosity of the medium is η = 10 -3 PaNs.

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