“…Examination of this table reveals that for samples of the KCa series all values of the characteristic energy E are much the same, in the range of 3.3−4 kJ/mol, while the values of the exponent r are about 1.0 and hence in fair accord with the one ( r = 1) usually used in modeling of adsorption on mesoporous materials. , In fact the latter values increase slightly from 1.0 to 1.2 with an increase in chloride content from 10 to 30 wt %, respectively, and this trend, similar to that observed before, is a clear indication of the more intensive adsorption of water on the surfaces with a larger chloride content. Quite surprisingly, the r values pertaining to water adsorption on LiBr-doped samples are in the range of 1.5−3.0, that is, usually connected with adsorption on microporous active carbons, ,, while the values of E are equal to about 8 kJ/mol, and again they appear to be independent of the dopant content. These larger values of both r and E on the latter samples as compared with those depicting water adsorption on the CaCl 2 -doped composites are a clear indication 15 of the larger intensity of adsorption (of water) in the pertinent relative pressure interval ( p / p o < 0.2).…”