20. Calculate the specific surface area of the adsorbent using the isotherm of benzene adsorption on its surface. The amount of area occupied by a nitrogen molecule on the surface of the adsorbent B0 = 49*10-20 m2).
p/ps…………………………………… 0.04 0.08 0.16 0.22 0.27
a·102, m3/kg……………………………1.15 1.37 1.55 1.71 1.86

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