Contents of Today S.J.T.U. Phase Transformation and Applications Review (Units,math) 0th law System and surroundings Intensive and extensive properties Energy Work.heat transfer Notation etc. Page 1 to Page 16 SJTU Thermodynamics of Materials Spring2006©X.J.Jin Lecture 1 First law I
Phase Transformation and Applications S. J. T. U. SJTU Thermodynamics of Materials Spring 2006 © X. J. Jin Lecture 1 First law I Contents of Today Review (Units,math) 0th law System and surroundings Intensive and extensive properties Energy Work, heat transfer Notation etc. Page 1 to Page 16
Purpose S.J.T.U. Phase Transformation and Applications Thermodynamics is about developing a rigorous understanding of natural processes. Much of what you will learn about materials science will rely on your comprehension of thermodynamics. The basis of your future major courses SJTU Thermodynamics of Materials Spring 2006 ©X.J.Jin Lecture 1 First law I
Phase Transformation and Applications S. J. T. U. SJTU Thermodynamics of Materials Spring 2006 © X. J. Jin Lecture 1 First law I Purpose Thermodynamics is about developing a rigorous understanding of natural processes. Much of what you will learn about materials science will rely on your comprehension of thermodynamics. The basis of your future major courses
Purpose S.J.T.U. Phase Transformation and Applications The science of thermodynamics is concerned with heat and work,and transformations between the two.It is based on two laws of nature,the first and second laws of thermodynamics.By logical reasoning and skillful manipulation of these laws, it is possible to correlate many of the properties of materials and to gain insight into the many chemical and physical changes that materials undergo. SJTU Thermodynamics of Materials Spring 2006 ©X.J.Jin Lecture 1 First law I
Phase Transformation and Applications S. J. T. U. SJTU Thermodynamics of Materials Spring 2006 © X. J. Jin Lecture 1 First law I Purpose The science of thermodynamics is concerned with heat and work, and transformations between the two. It is based on two laws of nature, the first and second laws of thermodynamics. By logical reasoning and skillful manipulation of these laws, it is possible to correlate many of the properties of materials and to gain insight into the many chemical and physical changes that materials undergo
Contents of the course S.J.T.U. Phase Transformation and Applications 热力学研究热功转换的方向、限度以及能量的衡算。 ·0,1,2,3 th law Property Relationships ·Equilibrium Chemical Equilibrium Electrochemistry Solution Phase rule o Phase diagrams Statistical Thermodynamics Surfaces and Interfaces SJTU Thermodynamics of Materials Spring 2006 ©X.J.Jin Lecture 1 First law I
Phase Transformation and Applications S. J. T. U. SJTU Thermodynamics of Materials Spring 2006 © X. J. Jin Lecture 1 First law I Contents of the course • 0, 1, 2, 3th law • Property Relationships • Equilibrium • Chemical Equilibrium • Electrochemistry • Solution • Phase rule • Phase diagrams • Statistical Thermodynamics • Surfaces and Interfaces 热力学研究热功转换的方向、限度以及能量的衡算
How to learn? S.J.T.U. Phase Transformation and Applications 。Reading ·Discussion ·Exercise God helps those who help themselves! SJTU Thermodynamics of Materials Spring2006©X.J.Jin Lecture 1 First law I
Phase Transformation and Applications S. J. T. U. SJTU Thermodynamics of Materials Spring 2006 © X. J. Jin Lecture 1 First law I How to learn? • Reading • Discussion • Exercise God helps those who help themselves!
Units S.J.T.U. Phase Transformation and Applications ·Temperature 1 Kelvin -F=32+1.8C ·Composition -18K:18/24 -Measurement SJTU Thermodynamics of Materials Spring2006©X.J.Jin Lecture 1 First law I
Phase Transformation and Applications S. J. T. U. SJTU Thermodynamics of Materials Spring 2006 © X. J. Jin Lecture 1 First law I Units • Temperature – 1 Kelvin – F=32+1.8C • Composition – 18K: 18/24 – Measurement
Math S.J.T.U. Phase Transformation and Applications ·Total differential -1 Euler 三一 0z Stiring approximately equation lnW!≈WlnW-W SJTU Thermodynamics of Materials Spring 2006 ©X.J.Jin Lecture 1 First law I
Phase Transformation and Applications S. J. T. U. SJTU Thermodynamics of Materials Spring 2006 © X. J. Jin Lecture 1 First law I Math • Total differential ≈ ln!ln − NNNN • Stiring approximately equation ⎟ −= 1 ⎠⎞ ⎜⎝⎛ ∂∂ ⎟⎠⎞ ⎜⎝⎛ ∂∂ ⎟⎟⎠⎞ ⎜⎜⎝⎛ ∂∂ z xy zy xz yx x y z y z x z x y ⎟⎟⎠⎞ ⎜⎜⎝⎛ ∂∂ ⎟⎠⎞ ⎜⎝⎛ ∂∂ ⎟ −= ⎠⎞ ⎜⎝⎛ ∂∂ Euler
Index of nomenclature S.J.T.U. Phase Transformation and Applications System/surroundings.系统、环境 Open/close/isolated systems敞开、封闭、孤立 Thermal equilibrium/steady state平衡、稳态 ·Heat/work热、功 o Internal energy内能热力学能 o State function状态函数 o Intensive/extensive properties:强度、容量性质 o Enthalpy焓 ·Heat capacity热容 SJTU Thermodynamics of Materials Spring2006©X.J.Jin Lecture 1 First law I
Phase Transformation and Applications S. J. T. U. SJTU Thermodynamics of Materials Spring 2006 © X. J. Jin Lecture 1 First law I Index of nomenclature • System / surroundings系统、环境 • Open / close / 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
0th law S.J.T.U. Phase Transformation and Applications Two systems in thermal equilibrium with a third system are also in thermal equilibrium with each other. Principle of measuring Temperature! Thermometer->the third system SJTU Thermodynamics of Materials Spring2006©X.J.Jin Lecture 1 First law I
Phase Transformation and Applications S. J. T. U. SJTU Thermodynamics of Materials Spring 2006 © X. J. Jin Lecture 1 First law I 0th law • Two systems in thermal equilibrium with a third system are also in thermal equilibrium with each other. Principle of measuring Temperature! Thermometer -> the third system
1.1 Systems and Surroundings S.J.T.U. Phase Transformation and Applications A system:any portion of space or matter set aside for study How the system is defined Open system:matter is allowed to enter or leave Close system:no matter enters or leaves A bottle of water? .Surroundings:everything else SJTU Thermodynamics of Materials Spring 2006 ©X.J.Jin Lecture 1 First law I
Phase Transformation and Applications S. J. T. U. SJTU Thermodynamics of Materials Spring 2006 © X. J. Jin Lecture 1 First law I 1.1 Systems and Surroundings •Surroundings: everything else • A system: any portion of space or matter set aside for study < How the system is defined – Open system: matter is allowed to enter or leave – Close system: no matter enters or leaves A bottle of water?