先进材料疑固实验室 Laboratory of Advanced Materials Solidification 1896 1920 1987 2006 A B 50 50 30 20 0.04 0.03 10 001 0.02 00 0.005 0.010.0150.020.0250.03 0.0350.04 Conformational Change of HupA (A) PNAS110,4273-4278(2013) Brief of statistic thermodynamics Dr.Mingxu Xia 上浒充通大学 SHANGHAI JIAO TONG UNIVERSITY
1896 1920 1987 2006 Brief of statistic thermodynamics Dr. Mingxu Xia PNAS 110, 4273-4278 (2013)
先进材料疑固实验室 Outline Laboratory of Advanced Materials Solidification Macro Micro thermodynamics Basic concept of statistical thermodynamics Entropy S Enthalpy H anced Materals o 上浒充通大学 SHANGHAI JIAO TONG UNIVERSITY
Outline Macro & Micro thermodynamics Basic concept of statistical thermodynamics Entropy S Enthalpy H
Macro&Microscopic 先进材料疑固实验室 thermodynamics Laboratory of Advanced Materials Solidification Macroscopic thermodynamics: Be concerned with relative changes of macroscopic properties, such as P,T,Cp.m… Does not require any knowledge of the atomic nature of matters. Can ignore the existence of molecules,molecular complexity,and quantum mechanics ory o vanced Matera 上浒充通大学 SHANGHAI JIAO TONG UNIVERSITY
Macro&Microscopic thermodynamics Macroscopic thermodynamics: Be concerned with relative changes of macroscopic properties, such as P, T, Cp,m… Does not require any knowledge of the atomic nature of matters. Can ignore the existence of molecules, molecular complexity, and quantum mechanics
Macro&Microscopic 先进材料疑固实验室 Laboratory of Advanced Materials Solidification thermodynamics Microscopic(statistical)thermodynamics: Attempts to compute absolute values of thermodynamic quantities based on a statistical averaging of such properties of individual atoms or molecules as the m,V,bond strength,vibration frequencies... Relies heavily on quantum mechanics,and knowledge of molecular motion and structures. 上浒充通大学 SHANGHAI JIAO TONG UNIVERSITY
Macro&Microscopic thermodynamics Microscopic(statistical) thermodynamics: Attempts to compute absolute values of thermodynamic quantities based on a statistical averaging of such properties of individual atoms or molecules as the m, V, bond strength, vibration frequencies… Relies heavily on quantum mechanics, and knowledge of molecular motion and structures
先进材料疑固实验室 Basic concepts Laboratory of Advanced Materials Solidification A basic idea embodied in statistical thermodynamics is: Even when a material is in equilibrium on a macroscopic scale,it is dynamic on a microscopic scale. To be derived: Dynamic distribution Distribution consequences anced Materials Sol 上浒充通大学 SHANGHAI JIAO TONG UNIVERSITY
Basic concepts A basic idea embodied in statistical thermodynamics is: Even when a material is in equilibrium on a macroscopic scale, it is dynamic on a microscopic scale. To be derived: Dynamic distribution Distribution consequences