%0 Conference Article %T THE FIRST LAW OF THERMODYNAMICS AND ENTHALPY %A Skvorcova, E.I. %A Yagodkin, A.S. %A Ohrimenko, D.M. %K enthalpy, first law of thermodynamics, internal energy, endothermic reactions, exothermic reactions %J MODELING INFORMATION SYSTEMS AND TECHNOLOGIES – 2025 %D 2025 %P 6 %I FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov