Abstract
An empirical relation is given for the universal t curve of multimolecular nitrogen adsorption, relating the thermodynamic potential of the adsorbed layer at 78 °K to its thickness. With the aid of this relation, the equations for the thickness of the adsorbed layer in a cylindrical pore and the pressure at which spontaneous capillary condensation takes place, dependent on pore radius, as given in the preceding part, A, of this series, have been solved numerically. A general equation is derived for the calculation of pore distributions in the case of cylindrical pores, making use of the given concepts. Examples of application to the pore distribution analysis of nitrogen sorption isotherms already published are given. For comparison, the results of a pore distribution calculation along the adsorption branch of the same isotherms, but making use of the Cohan equation for capillary condensation, are given. The results of the former method compare favorably with those of the latter.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
