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24. In measuring the surface tension of aqueous solutions of propionic acid at T = 293 K, the following values were obtained:

Concentration C, mol / dm3 0 0.1 0.24 0.95 2.0
Surface tension σ⋅103, N / m 73.3 65.5 60.0 45.7 38.8

Based on these data, construct the graphs σ = f (C) and Γ = f (C). Determine the constants of the Langmuir equation K and Г∞.
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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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