Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Hydrogen bonds and dynamics of liquid water and alcohols   Using modified Arrhenius approximations, the activation energies of water,
alcohols, and hexane structure rearrangement reactions responsible for
temperature dependences of their dynamic and dielectric characteristics were
determined. The interactions of van der Waals and charged centers of water and
alcohol molecules regulate translational and rotational motion of molecules,
ensuring coordination and balance of thermal effects of exothermic and
endothermic reactions of changes in local structure of liquid. The long range
action of fluctuating dipoles of hydrogen bonds and their resonant excitation
by thermal energy underlies the anomalies in temperature dependences of water
properties and initiates its phase transitions at points 273 K and 298 K. The
deviation of the molecular dynamics of water from Arrhenius and Stokes Einstein
equations in range from 273 to 298 K was associated with a high contribution of
collective dynamics of ice like phase of water consisting of a network of
hydrogen bonds structured by hexagonal clusters of Ih ice.

2
The categories of this paper are: math
9
The categories of this paper are: nlin
29
The categories of this paper are: funct-an
27
The categories of this paper are: comp-gas
15
The categories of this paper are: nucl-ex
20
The categories of this paper are: acc-phys
23
The categories of this paper are: solv-int
24
The categories of this paper are: dg-ga
12
The categories of this paper are: nucl-th
34
The categories of this paper are: chem-ph
7
The categories of this paper are: hep-th
1
The categories of this paper are: cs
33
The categories of this paper are: plasm-ph
4
The categories of this paper are: cond-mat
35
The categories of this paper are: mtrl-th
16
The categories of this paper are: stat