Engineering Physics Annotation << Back Influence of Supramolecular Structures on the Heat of Vapor Formation, Heat Capacity and Surface Tension of Water Pavlov A.N. When describing the thermal properties of water for the internal energy of liquid water, in addition to the energy of the chaotic movement of molecules, one should take into account the potential energy of interaction of molecules associated with supramolecular structures. These structures can be described as fractal aggregates, that is, loose formations consisting of individual elements that are structurally similar to the whole formation. Due to their looseness, fractal structures become clathrates due to the introduction of water molecules from outside. Due to stabilization by fractals, clathrate water has additional binding energy. It is shown that, based on the concept of the presence of supramolecular structures in liquid water, it is possible to describe the temperature dependence of the heat of vaporization, heat capacity and surface tension. Within the framework of the fractal model, the abnormally high values of heat capacity for liquid water and its temperature decline, which is not typical for other liquids, are also explained from a unifi ed position. as well as the formation of the heat of vaporization and surface tension. Keywords: supramolecular structures, fractal, heat of vaporization, heat capacity, surface tension. DOI: 10.25791/infi zik.10.2024.1433 Pp. 52-58.