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The book presents applied methods of calculation of thermodynamic functions (heat capacity, enthalpy, Gibbs energy, entropy) of both separate substances and chemical reactions. A new notion The Gibbs function normalized to the total number of electrons is proposed the physical sense of which is in determining a chemical bond as a collective effect of electronnucleus interaction. Using it, the authors presented the methods of describing stability of compounds, triangulation of systems, algorithms of determination of reaction mechanisms of dehydration and polycondensation processes and those of exchange, hydration, conversion.
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