Abstract
The dynamic properties of melts of metals of different valences were calculated from the first principles using the approach of collective excitations and the pseudopotential method for determining the characteristics of interionic interaction potentials. Direct interrelation of these characteristics with the properties of calculated compressibility and sound propagation velocity in metallic melts was established. The collective excitation approach was shown to be capable of estimating the entropy and sound velocity. It provides closer agreement with experiment than the use of phonon spectra.
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