Chapter 3 The second law of thermodynamics $3-1 Carnotcycle S 3-2 The common characteristic of spontaneous changes S3-3 The second law of thermodynamics §3-4 Entropy、Helmholz function、Gibbs function S 3-5 Thermodynamics of perfect gase S 3-6 The second law in action:The general liquid and solid S 3-7 The second law in action:The phase transition $3-8 Fundamental equation for closed systems and The Maxwell relations S 3-9 The second law in action:Real gases S 3-10 The phase equilibrium of pure materials Chapter 3 The second law of thermodynamics §3-1 Carnot cycle §3-2 The common characteristic of spontaneous changes §3-3 The second law of thermodynamics §3-4 Entropy、Helmholz function、Gibbs function §3-5 Thermodynamics of perfect gase §3-6 The second law in action:The general liquid and solid §3-7 The second law in action:The phase transition §3-8 Fundamental equation for closed systems and The Maxwell relations §3-9 The second law in action:Real gases §3-10 The phase equilibrium of pure materials