2.1 Preface to the thermodynamics 2.2 The thermodynamic first law 2.3 Quasi-static process and reversible process 2.4 Enthalpy 2.5 Heat capacity 2.6 The first law in ideal gases 2.7 Thermochemistry 2.8 The Hess’s law 2.9 Heat in some processes 2.10 The temperature dependence of the reaction enthalpy —— Kirchhoff’s law 2.11 An adiabatic reaction ——non-isothermal reaction