6. Determine the flow potential if a 42.4% aqueous solution of ethyl alcohol is pressed through the film at a pressure of 20 * 10-3 Pa. The specific electrical conductivity of the solution is x=1.3*10-3 Sm*m–1, the relative dielectric constant of the solvent is 41.3, the viscosity is 0.9*10-3 Pa*s, the electrokinetic potential = 16*10-3 V.

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