Contents of Today S.J.T.0. Phase Transformation and Applications Review previous 1th law continuous Adiabatic process:Joule-Thomson expansion绝热过程 Equations of state状态方程 Adiabatic compression or expansion绝热压缩与膨胀 Enthalpies of formation生成焓 Enthalpy changes in chemical reactions焓变与化学反应 Adiabatic temperature change in chemical reactions化学反 应的绝热温度 etc. SJTU Thermodynamics of Materials Spring 2008 X.J.Jin Lecture 2 First Law ll
Phase Transformation and Applications S. J. T. U. SJTU Thermodynamics of Materials Spring 2008 © X. J. Jin Lecture 2 First Law II Contents of Today Review previous 1th law continuous Adiabatic process: Joule-Thomson expansion 绝热过程 Equations of state 状态方程 Adiabatic compression or expansion 绝热压缩与膨胀 Enthalpies of formation 生成焓 Enthalpy changes in chemical reactions 焓变与化学反应 Adiabatic temperature change in chemical reactions 化学反 应的绝热温度 etc
Index of nomenclature S.J.T.0. Phase Transformation and Applications Adiabatic绝热 Equations of State状态方程 Non-ideal Gases非理想气体 Enthalpies of Formation生成焓 Exothermic:放热 Endothermic:吸热 Enthalpy of combustion: 燃烧焓 Enthalpy Change in Chemical Reactions化学反应的焓变 AFT:adiabatic flame temperature绝热燃烧温度 SJTU Thermodynamics of Materials Spring2008©X.J.Jin Lecture 2 First Law ll
Phase Transformation and Applications S. J. T. U. SJTU Thermodynamics of Materials Spring 2008 © X. J. Jin Lecture 2 First Law II Index of nomenclature Adiabatic绝热 Equations of State状态方程 Non-ideal Gases非理想气体 Enthalpies of Formation生成焓 Exothermic: 放热 Endothermic: 吸热 Enthalpy of combustion：燃烧焓 Enthalpy Change in Chemical Reactions化学反应的焓变 AFT: adiabatic flame temperature绝热燃烧温度 Index of nomenclature
Review Key points S.J.T.0. Phase Transformation and Applications The first law of thermodynamics is simply the principle of conservation of energy:that is,energy can be neither created or destroyed. To derive the practical benefits of knowing this principle, we must construct an accounting system for energy, sometimes called an energy balance. This system must handle flows of energy,such as heat and work,as well as the various forms of energy that matter possesses. To operate this accounting system,we will need to understand a series of basic notions and definitions. SJTU Thermodynamics of Materials Spring2008©X.J.Jin Lecture 2 First Law ll
Phase Transformation and Applications S. J. T. U. SJTU Thermodynamics of Materials Spring 2008 © X. J. Jin Lecture 2 First Law II Review / Key points • The first law of thermodynamics is simply the principle of conservation of energy: that is, energy can be neither created or destroyed. • To derive the practical benefits of knowing this principle, we must construct an accounting system for energy, sometimes called an energy balance. • This system must handle flows of energy, such as heat and work, as well as the various forms of energy that matter possesses. • To operate this accounting system, we will need to understand a series of basic notions and definitions
Review Key points S.J.T.0. Phase Transformation and Applications e System/surroundings.系统/环境 Open/closed/isolated systems敞开/封闭/孤立 ·Thermal equilibrium/steady state平衡稳态 ·Heat/work热功 ·Internal energy内能/热力学能 ·State function状态函数 ·Intensive/extensive properties强度/容量性质 ·Enthalpy焓 ·Heat capacity热容 SJTU Thermodynamics of Materials Spring2008©X.J.Jin Lecture 2 First Law ll
Phase Transformation and Applications S. J. T. U. SJTU Thermodynamics of Materials Spring 2008 © X. J. Jin Lecture 2 First Law II Review / Key points • System / surroundings系统/环境 • Open / closed / isolated systems敞开/封闭/孤立 • Thermal equilibrium / steady state平衡稳态 • Heat / work热功 • Internal energy内能/热力学能 • State function状态函数 • Intensive / extensive properties强度/容量性质 • Enthalpy焓 • Heat capacity热容
Review Key points S.J.T.0. Phase Transformation and Applications Systems can be classified as open,close and isolated systems e Oth law 1st law energy conservation ·Heat/work Internal energy enthalpy heat capacity ·State function Mechanical energy Equilibrium /steady state SJTU Thermodynamics of Materials Spring2008©X.J.Jin Lecture 2 First Law ll
Phase Transformation and Applications S. J. T. U. SJTU Thermodynamics of Materials Spring 2008 © X. J. Jin Lecture 2 First Law II Review / Key points • Systems can be classified as open, close and isolated systems • 0th law • 1st law / energy conservation • Heat / work • Internal energy / enthalpy / heat capacity • State function Mechanical energy Equilibrium / steady state