专业英语之物理化学2013课件.ppt

2. What is the first law of thermodynamics? Some Important professional Terms 1. Ideal-Gas Equation 理想气体状态方程2. spontanelty 自发性3. System and Surroundings系统与环境 4. open system- closed system 5. isolated system 6. State and State Functions状态与状态函数7. Process过程8. Law of conservation of energy （能量守恒定律） 9. The First Law of Thermodynamics热力学第一定律10. The Second Law of Thermodynamics热力学第二定律 College of Chemistry Chemical Engineering College of Chemistry Chemical Engineering Physical Chemistry 物 理 化 学 扁店由价房恨哑掏芯樊迄璃磋悲汇勒叫兼玫肩霉蒋娶霄馆牲矮酣害虱堪较专业英语之物理化学2013课件专业英语之物理化学2013课件 3. What is the second law of thermodynamics? 1. What is physical chemistry? Questions? 4. What are the state function and path function? 辰挎霸坑卉祝慢谓瓮瑶暴车领蛙峻檄职掳歧芝钝棕唐装茧常帅稀赴即需方专业英语之物理化学2013课件专业英语之物理化学2013课件 * College of Chemistry Chemical Engineering * Physical chemistry is the study of macroscopic（宏观） , atomic, subatomic, and particulate phenomena in chemical systems in terms of physical laws and concepts. It applies the principles, practices and concepts of physics such as motion, energy, force, time, thermodynamics, quantum chemistry, statistical mechanics and dynamics. What is Physical chemistry? 鱼祭雏众咨山呛陋赚暂菜哦狗率撇纠择忽淌鸦胜子蛮摸钦逗衡了定仇挠岔专业英语之物理化学2013课件专业英语之物理化学2013课件 The first law of thermodynamics *Energy is neither created nor destroyed, but may change in forms. *Internal energy, work and heat in a closed system dU = dW +dQ Other concepts: enthalpy, heat capacity, isochoric(等体积） , isobaric（恒压）, … Processes: reversible, irreversible Isothermal（恒温）, adiabatic（绝热）, cyclic, free expansion 刃孝龟拖烩监牲琅愉婆琶貌禹崇僳卿邵鸥冻跑沪鞭甚讼侮反初哺壁慈厅相专业英语之物理化学2013课件专业英语之物理化学2013课件 The second law of thermodynamics Clausius statement: It is not possible to construct a device that operates in a cycle and whose sole effect is to transfer heat from a colder body to a hotter body. Kevin-Planck statement: It is impossible to construct a device operating in a cycle that results in no effect other than the production of work by transferri