2. Solving a chemistry problem

1. Using the datasheet for each option, plot three benzene adsorption isotherms on graphite soot.
2. Applying the linearized form of the Langmuir equation, check its applicability by plotting P / A versus P. Using the tangent of the slope of the straight lines to the abscissa axis, determine the limiting monomolecular adsorption A∞ for three temperatures, and using the segment cut off on the y-axis, and the slope of the straight line is the value of the adsorption equilibrium constant K
3. Having determined the limiting monomolecular adsorption A∞ at 293 K, calculate the specific surface area of the adsorbent if the area occupied by a benzene molecule on the surface of graphitized soot S0 is 49∙10-20 m2.
4. Plot lnK versus 1/T and determine ΔH.
5. For A=0.01 mol/kg; A=0.015 mol/kg; A = 0.02 mol/kg, construct isosteres, from which determine graphically the differential isosteric heats of adsorption.
Option 1
P, Pa 0 10 30 50 70
А293, mol/kg 0 0.0086 0.0204 0.0281 0.0335
А303, mol/kg 0 0.0051 0.0132 0.0194 0.0242
А313, mol/kg 0 0.0031 0.0084 0.0129 0.0167