8. Constants of the Shishkovsky equation for an aqueous

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8. Constants of the Shishkovsky equation for an aqueous solution of valeric acid at T = 273 K are given: a = 14.72 · 10 -3, b = 10.4. Determine the concentration of the solution at which the surface tension will be
σ = 52⋅10 -3 N / m, if the surface tension of water σ 0 = 75.49 · 10 -3 N / m.

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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