RELATIONSHIPS BETWEEN CONSTANTS OF THE FREUNDLICH EQUATION AND TEMPERATURE FOR GASEOUS ADSORPTION

Abstract For the Freundlich equation, the linear dependences of In k and n on T and In k on n were derived theoretically and examined by experimental data. In addition, the influence of the adsorbed amount on the isosteric heat of adsorption was also studied. The result shows that the isosteric heat of adsorption is varied linearly with the logarithm of adsorbed amount, ft is also found from experimental data that the plots of In k vs. n for various adsorbates adsorbed on the same adsorbent can be correlated by a straight line for adsorbates with the similar values of the parameter A' of Clapeyron equation.