Accession Number : ADA190736
Title : Anomalies in the Heat-Capacity Signatures of Submonolayer Adsorbates with Attractive Lateral Interactions.
Descriptive Note : Technical rept.,
Corporate Author : STATE UNIV OF NEW YORK AT BUFFALO DEPT OF CHEMISTRY
Personal Author(s) : Kim, Young S ; Battaglia, Franco ; George, Thomas F
PDF Url : ADA190736
Report Date : Feb 1988
Pagination or Media Count : 40
Abstract : The analytic closed form of the heat-capacity signatures previously derived for the McQuistan-Hock (MQH) model of a lattice gas is applied to a various adsorbed systems for which the lateral interaction varies from a few meV to about 300 meV. It is shown that whenever the adsorption system can be described by a two-dimensional gas on which the substrate effects are less important than the adatom-adatom interactions, the computed temperatures at which the heat-capacity signatures display their maximum are in excellent agreement with the experimental measurements. Keywords: Heat capacities, Submonolayer adsorbates, Attractive lateral interactions, Anomalies, McQuistan hock model, Two dimensional lattice.
Descriptors : *ADSORPTION, *HEAT, *TEMPERATURE, CAPACITY(QUANTITY), EXPERIMENTAL DATA, GASES, MEASUREMENT, SIGNATURES, SUBSTRATES, TWO DIMENSIONAL
Subject Categories : Thermodynamics
Distribution Statement : APPROVED FOR PUBLIC RELEASE