46. Solving a chemistry problem

46. Solving a chemistry problem

5. Calculate the effective pore diameter of silica gel from the experimental data on the adsorption of benzene vapor on this adsorbent at 293 K.
Adsorption p/ps 0.554 0.634 0.763 0.782 0.826 0.882 0.999
А, mol kg 1.62 1.88 3.95 4.35 4.90 17.2 19.2

Desorption p/ps 0.948 0.880 0.852 0.810 0.770 0.686 0.610 0.585
A, mol/kg 18.98 18.78 18.70 14.69 7.14 2.67 1.91 1.77

The surface tension of benzene is 28.87 mJ/m2, the molar volume is 88.79 cm3/mol. Construct an integral curve for the distribution of pore volume over their radii.

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