4. The volume V of the substance (referred to 273 K and 1.01 * 105 Pa) of adsorbed 1 g of the adsorbent at 273 K and various pressures is given in the table:
1) plot the adsorption isotherm V=f(p) and p/V=f(p);
2) describe the adsorption isotherm using the Langmuir equation;
3) determine the adsorption (m3/g) at the maximum filling of the adsorbent;
4) determine the degree of filling of the adsorbent at pressure P1;
5) determine at what gas pressure the degree of filling of the adsorbent will be 0.4.
T,K Adsorbent Adsorbate P1*10-4, Pa P*10-3, Pa V*106, m3/g
273 BaF2 CO 5.0 11.30 24.40 44.50 61.00 82.50 2.01 3.72 5.30 6.34 7.30

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