THERMOPHYSICAL PROPERTIES OF CUBIC ELEMENTS

The Gruneisen-Debye equation of state (EOS) is presented for cubic sol ids. The Helmholtz free energy F(T,V) is obtained from the second inte gral of the Gruneisen relation. F(T,V) is determined by six constants: molar volume V-0, cohesive energy epsilon(c), Debye temperature Theta (0), Gruneisen parameter Gamma, exponent delta and constant of electro nic contribution to specific heat gamma'. Thermophysical and high pres sure properties, such as functions of temperature T, volume V or press ure p, have been calculated for cubic elements. Volume V(T), V(p), hea t capacity C-p(T), volume expansivity alpha(p)(T), bulk modulus K-T(T) , K-T(p) and the pressure coefficient K-0' = Gamma + delta + 2 show ex cellent agreement for the alkali metals Li, Na and K, the transition m etals Cu, Ag, Au, Ni and Fe, the main group metals Al and Pb, and soli d rare gas crystals Ne, Ar, Kr and Xe.