18. Show that the adsorption of argon on graphitized thermal soot obeys the Langmuir equation and find the graphical constants of this equation. Using the following data:
P*10-4, Pa 1 2 3 4 5
A, mol/kg 0.050 0.086 0.114 0.136 0.154
Calculate the specific surface area of ​​the adsorbent if the area occupied by one molecule is 0.132 nm2

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