131.Solving a chemistry problem

131.Solving a chemistry problem

1. The amount (V) of ammonia adsorbed by 1 g of coal at 293 K and various pressures is as follows:
• 10 –3 , Pa
9.64 21.00 42.42 63.76 74.67
V•10 6, m3/g 59.04 90.00 115.6 125.40 129.90
Plot the adsorption isotherm V = f (P) and p/V = f (P); determine the adsorption value (m3/g) at maximum filling of the adsorbent; determine at what pressure the degree of filling of the adsorbent will be equal to 0.5; determine the degree of filling of the adsorbent at a pressure of 4.7•104 Pa.

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