285. Using the BET isotherm of nitrogen adsorption at 77 K, calculate the specific surface area of the adsorbent if the area occupied by one nitrogen molecule is S0 = 0.162 nm 2 .
r/rs 0.03 0.05 0.11 0.14 0.18 0.20
A, mol/kg 0.48 0.54 0.64 0.68 0.72 0.75
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