Abstract
Theorems for the dependence of the specific acoustic impedance (ςc) of organic liquids on the surface tension (σ) are proposed and substantiated. It was found that for a given liquid the quotient N = ςc/σ is constant at different temperatures. For liquids with similar chemical structure N = ςc/σ &= const. Formulae for the sound propagation velocity and its temperature coefficient which permit the evaluation of the said parameters from the density and surface tension of a liquid are given. An analysis of the accuracy of the values of sound velocities has been made and the temperature coefficients Δc/Δt calculated for ten liquids, have been compared with the coefficients obtained by experiment. A reversal of the relationship for N permits calculation of the surface tension with an accuracy that is sufficient for practical purposes.References
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