Description of microscopic states 3.2Equilibrium conditions Microscopic definition of entropy 4.Teaching method Talk and discussior 5.Evaluation Assignment: Chapter6 Ensemble theory 1.Purpose Understand the concept of ensemble and the relation between ensemble averages and macroscopic variables; 2.Key points Phase space,Liouwill's theorem, 3.Content 3.1 Phase space: Microscopic states and phase space: 3.2 Liouwill's theorem: Density of states in phase space.Derivation of Liouwill's theorem 3.3 Microcanonical ensemble and Entropy Calculation of the entropy in Microcanonical ensemble 3.4Canonical ensemble Ensemble average and Fluctuation 3.5 Grand Canonical ensemble 4.Teaching method Talk and discussion 5.Evaluation Assignment, Chapter 7 Classical ideal gas and Maxwell-Boltzmann Distribution 6 6 Description of microscopic states 3.2 Equilibrium conditions Microscopic definition of entropy 4.Teaching method Talk and discussion 5.Evaluation Assignment; Chapter 6 Ensemble theory 1.Purpose Understand the concept of ensemble and the relation between ensemble averages and macroscopic variables; 2.Key points: Phase space; Liouwill’s theorem; 3.Content 3.1 Phase space： Microscopic states and phase space； 3.2 Liouwill’s theorem； Density of states in phase space; Derivation of Liouwill’s theorem； 3.3 Microcanonical ensemble and Entropy Calculation of the entropy in Microcanonical ensemble 3.4 Canonical ensemble Ensemble average and Fluctuation 3.5 Grand Canonical ensemble 4.Teaching method Talk and discussion 5.Evaluation Assignment; Chapter 7 Classical ideal gas and Maxwell-Boltzmann Distribution