A molecular model of the air/water interface structure and its influence on the water evaporation speed (physico-chemical analysis)

1Kushnir, SV
1Institute of Geology and Geochemistry of Combustible Minerals of the NAS of Ukraine, Lviv
Dopov. Nac. akad. nauk Ukr. 2019, 1:55-62
Section: Geosciences
Language: Ukrainian

It is shown that, on the surface of water, the planar cyclic clusters N4 and N5 can form a flat grid of hydrogen bonds with the help of additional H2O molecules. The interaction of this electrically neutral grid with bulk water leads to the active adsorption of Н3О+ ions, the emergence of a double electric layer, and the reorientation of all incoherent groups of OH clusters toward the liquid phase. As a result, a negative structural charge arises on the surface of the air/water interface. The surface molecular-cluster interface film formed in this way has a sufficiently high stability and the ability to adsorb Н3О+ ions and cations of various metals. Evaporation of water must pass through sufficiently large “windows” in the surface cluster grid.

Keywords: air/water interface, clusters, molecular model, rate of evaporation, water evaporation mechanisms

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