When conducting an experiment of Nadsorption on a sample of coal at 77 Cand in the absence of moisture, the volume of gas adsorbed (re-calculated at & Cand 1 atm) according to the pressure of N gas is given in the following table: P (atm) 3,5 101 v(cm³/g) Calculate the adsorption constant KA using Langmuir isotherm model 10,0 136 16,7 153 25,7 162 33,5 165 39,2 166

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