6. Calculate the excess adsorption of ethanediol and construct an adsorption isotherm from the dependence σ=f(c) of its aqueous solutions at T=303K.

N 10 σ 103, N/m N 10 σ 103, N/m N 10 σ 103, N/m
0
0.084
0.145
0.246 71.15 69.33 68.58 67.54 0.309 0.466 0.550 0.671 66.84 65.04 64.19 63.37 0.923 1.118
1.351
1.624 61.58
60.25
59.54
58.28

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