The Langmuir adsorption isotherm is represented as . Based on experimental data at constant temperat — Surface Chemistry Chemistry Question

Question

The Langmuir adsorption isotherm is represented as $\frac{x}{m} = \frac{ap}{1+bp}$. Based on experimental data at constant temperature, the constant $a$ evaluates to $0.8\text{ atm}^{-1}$ and $b$ evaluates to $0.04\text{ atm}^{-1}$. Calculate the maximum possible amount of gas that can be adsorbed per gram of the solid (the limit of $x/m$ as pressure approaches infinity).