Wide-range model of mixture for chemically reacting nonideal gases and composite plasma

A mixture model is constructed for dense chemically reacting gases and dense chemically active nonideal composite plasma. Investigations are performed of the contribution made by the interactions of free heavy particles (charged and neutral) into the thermodynamic functions of gases and plasma in different regions of the phase diagram, where bound states may arise. The excluded phase volume, accessible for classical motion of free atoms, is included by introducing the Hill pseudopotential. A wide-range calculation is performed of the thermodynamic parameters of various substances and mixtures, and a comparison is made with the experimental data and the theoretical results of other researchers.