22. Using the adsorption isotherm of benzene at 293 K, calculate the specific surface area of ​​activated carbon if the area occupied by one benzene molecule S0=0.49 nm2
p/ps 0.004 0.012 0.119 0.247 0.415
A, mol/kg 3.49 4.28 5.74 6.20 6.69

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