Engineering, 18.03.2020 22:36 salvadorjr1226p4zkp3
The data below were obtained for the adsorption of CO on charcoal at 273 K using an instrument that measures the volume (corrected to 1 atm pressure) of gas molecules that become adsorbed onto a surface as a function of its pressure in the surround gas phase. Such measurements are commonly performed in order to quantify the surface area of a material. The charcoal sample had a mass of 0.5 g and a CO adsorption site density of 5x10¹⁵ cm⁻².
Pco (torr) 100 200 300 400 500 600 700
V (cm³) 10.3 19.3 27.3 34.1 40 45.5 48
(a) Is the data consistent with a Langmuir isotherm? Support your answer. Hint: you will need to modify the Langmuir isotherm for a single species to convert θ_a to V.
(b) Determine the adsorption equilibrium ratio (Kco) and the volume of CO that is adsorbed at complete coverage.
(c) What is the total surface area (S_a) of the piece of charcoal in m² per gram of charcoal?
Answers: 3
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The data below were obtained for the adsorption of CO on charcoal at 273 K using an instrument that...
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