Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Thermodynamic perturbation theory and equation of state developments   An alternative way of utilizing the thermodynamic perturbation theory of
Wertheim for the development of equations of state for associating fluid models
is presented and detailed for water. The approach makes use of general features
of the parameter of non-saturation to avoid the necessary solution of an
algebraic equation and unbinds the results from a tight dependence on details
of the simple reference fluid model used in the perturbation theory.

17
The categories of this paper are: q-fin
21
The categories of this paper are: adap-org
33
The categories of this paper are: plasm-ph
29
The categories of this paper are: funct-an
12
The categories of this paper are: nucl-th
37
The categories of this paper are: supr-con
30
The categories of this paper are: q-alg
25
The categories of this paper are: patt-sol
19
The categories of this paper are: eess
5
The categories of this paper are: gr-qc
28
The categories of this paper are: alg-geom
8
The categories of this paper are: hep-ex
20
The categories of this paper are: acc-phys
7
The categories of this paper are: hep-th
35
The categories of this paper are: mtrl-th
31
The categories of this paper are: ao-sci