6.27. Using the nitrogen adsorption isotherm, determine the specific surface of the adsorbent (Т = 77 K, S0 = 16.2 * 10–20
m2):
P / Ps 0.029 0.05 0.11 0.14 0.20
A, mol / kg 2.16 2.39 2.86 3.02 3.33
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