Using the adsorption isotherms of adsorbent A for Nitrogen and Methane gases at 26C: and at 46C given below, determine the 6 parameters of Toth isotherm model for each gas for all the temperatures. Discuss the applicability of this isotherm model for these systems. List the corresponding isotherm parameters as a table for both of the gases. Plot the original data (as q vs. P) in comparison to the fit for the Toth isotherm for each gas to show the applicability at 26oC and at 46oC. Show the original data as data points, and the curve fits for this isotherm models as different curves (do not use points for the curve fits).

Adsorbent A data at 46C: For Nitrogen: P, kPa n, mmol/g 124.3 28.32 293.8 53.81 493.4 75.10 798.1 92.85 1191.5 109.89 1597.0 123.08

For Methane: P, kPa n, mmol/g 153.5 75.09 319.5 127.62 519.5 168.67 766.5 209.08 1016.5 239.85 1393.5 267.49