The equilibrium adsorption of methane on a given activated carbon was studied by Grant et al. (1962). They proposed a Langmuir-type adsorption isotherm with parameters \(q_{m}=48 \mathrm{~g} \mathrm{CH}_{4} / \mathrm{kg}\) carbon, and

If the equilibrium partial pressure of \(\mathrm{CH}_{4}\) in a mixture is \(0.2 \mathrm{~atm}\), at what temperature will the solid loading be \(4.0 \mathrm{~g} / \mathrm{kg}\) ?

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1 1 K 0.346 2200 atm (9-90) T,K 298.1