  An analysis of the values and signs of the activation energies of temperature
dependences (TDs) of the self-diffusion coefficient (D) and dynamic viscosity
({\eta}) in the range from 0 {\deg}C to 100 {\deg}C confirmed that the
molecular dynamics of water is based on the synergism of endo and exo reactions
of rearrangement of hydrogen bonds in the supramolecular structure water. The
ratio of linear approximation coefficients TD of the complex characteristic
D{\eta} before and after 25 {\deg}C correlates with the ratio of cluster sizes
prevailing in the water structure in these temperature ranges. This result is
consistent with the Stokes-Einstein equation and the hypothesis that the
decomposition of hexagonal ice-like clusters is completed in the vicinity of 25
{\deg}C. A reliable approximation of the TD complex D{\eta} by a bimodal
function of type Texp (E/RT) was used to refine the Stokes-Einstein equation.
