Accession Number : AD0269570

Title :   ELEMENTARY LATTICE THEORIES AND THEIR APPLICATION TO GAS ADSORPTION PHENOMENA

Corporate Author : MASSACHUSETTS INST OF TECH LEXINGTON LINCOLN LAB

Personal Author(s) : HONIG,J.M.

Report Date : 11 DEC 1961

Pagination or Media Count : 1

Abstract : A review of certain lattice theories is presented for deriving Flory's formula for the free energy of a solution consisting of monomer and polymer molecules. The results are then reformulated, making them applicable to simple liquids reqarded as a binary mixture of highly symmetric molecules and fractional-sized holes. These results are adapted to provide a theory of gas adsorption in which the fractional hole size concept is utilized. One obtains isotherm equations and expressions for the partial molecular configurational entropies in which the hole size parameter r makes its appearance. For r equals 1, the results reduce to the zero-order Fowler-Guggenheim results; it is pointed out that certain symmetry properties no longer obtain when r exceeds 1. The theory is compared with experimental work on certain types of adsorbent-adsorbate systems. (Author)

Descriptors :   *CRYSTAL LATTICES, *GASES, *LIQUIDS, *QUANTUM STATISTICS, *SOLIDS, ADSORPTION, DENSITY, ENTROPY, NUMERICAL INTEGRATION, MOLECULES, PARTICLES, PHYSICAL PROPERTIES, PROBABILITY, STATISTICAL DISTRIBUTIONS, THEORY, VELOCITY

Distribution Statement : APPROVED FOR PUBLIC RELEASE