3.1热化学和焓 Thermochemistry and enthalpy 31化学和物理变化过程中的热效应 Heat effect during the chemical and physicalprocesses 312和焓变反应自发性的一种判 VE Enthalpy and enthalpy change the criterion of spontaneous reaction 313热化学计算和盖斯定律 Thermochemical calculation and hess law 上页下页目录返回上页 下页 目录 返回 3.1 热化学和焓 Thermochemistry and enthalpy 3.1.1 化学和物理变化过程中的热效应 Heat effect during the chemical and physical processes 3.1.3 热化学计算和盖斯定律 Thermochemical calculation and Hess’ law 3.1.2 焓和焓变—反应自发性的一种判 据 Enthalpy and enthalpy change — the criterion of spontaneous reaction