ch. 1. Physical and semi-empirical models of solvent influence on solute behavior -- ch. 2. Linear free energy relationships in chemistry of solutions -- ch. 3. Application of LFE relationships to chemical kinetics -- ch. 4. Specific and nonspecific interactions in complex forming reactions -- ch. 5. Quantitative consideration of the environment effect on gas adsorption and solubility of solids -- ch. 6. Application of LFE relationships to quantitative description of substance distribution processes between two phases -- ch. 7. Application of LFE equations to absorption and chromatography, swelling of polymers and diffusion.