Abstract
The interaction between two rare gas atoms is assumed to have the form — Ar—6+AB(expr). The values of A and B are found from the lattice distances and the heats of sublimation of frozen neon, argon, krypton and xenon for ρ=0.2091A and ρ=0.345A. The equations of state of the solids are then calculated, including the Debye θ's and the breakdown points, which occur a few degrees below the melting points. For krypton, the expansion coefficient and the specific heat are calculated, but are found too high at higher temperatures.

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