IUPAC definition : A numerical parameter, χ, employed in the Flory–Huggins theory, which accounts in
the main for the contribution of the non-combinatorial entropy of mixing and for the
enthalpy of mixing.;
A numerical parameter, χ, employed in the Flory–Huggins theory, which accounts in
the main for the contribution of the non-combinatorial entropy of mixing and for the
enthalpy of mixing.