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It is shown that the thermal conductivity of various liquids can be described adequately by taking into account the influence of intra-molecular conformational transitions on the number of bimolecular collisions in the liquid phase. The proposed equations allow the calculation of this transport property at different temperatures.

AbstractThe equation proposed for near-boiling non-associated liquids describes a new functional dependence of their surface tension on such physico-chemical characteristics as: critical volume, critical temperature and molar volume at the temperatures which are near their normal boiling points. It is shown that, in the case of some low-boiling liquids, possessing small molecules, this equation can be used for the adequate calculation of surface tension at different temperatures in the liquid phase.