Physical and Theoretical Chemistry

Molecular Energetics and Chemical Equilibrium

Contributions are invited on the thermodynamic description of non-ideal solutions, ionic liquids, deep eutectic solvents, and mixed solvent media where activity coefficients depart sharply from classical behaviour. Sessions will also cover calorimetric determination of heats of mixing, reaction, and dilution, together with temperature and pressure dependencies of phase transitions in confined or multicomponent systems. Attention will be given to coupled chemical and phase equilibria, metastable states, and the thermodynamic consistency of published data sets. Theoretical treatments based on equations of state, excess functions, and lattice or association models will be welcome alongside benchmark measurements. Computational prediction of molecular energetics for weakly bound complexes, hydrates, and solvated ions will be encouraged, as will machine-learned potentials trained on thermochemical databases. Practical outcomes may include separation design, formulation stability, electrolyte specification, and solvent selection for low-energy processing routes.