AVOGADRO CONSTANT DESCENDING FROM THE ELASTIC DATA FOR SOLIDS

The volume of the phase space of atoms oscillating in a solid has been estimated with the aid of elastic parameters characterizing a given s olid which are compressibility, the Debye temperature and the mass of the oscillating atoms. This volume - when divided according to Planck by h(3)-gives a number of cells in the phase space rather close to the Avogadro constant. The calculation has been illustrated on the exampl e of more than seventy monatomic and ionic solids. As a consequence, a new formula relating different elastic parameters of a solid has been derived.