Review /Key points S.J.T.U. Phase Transformation and Applications Systems can be classified as open,close and isolated systems 0th law 1st law energy conservation 。Heat/work Internal energy enthalpy heat capacity State function Mechanical energy Equilibrium/steady state SJTU Thermodynamics of Materials Spring 2006 X.J.Jin Lecture 2 First Law llPhase Transformation and Applications S. J. T. U. SJTU Thermodynamics of Materials Spring 2006 © X. J. Jin Lecture 2 First Law II Review / Key points • Systems can be classified as open, close and isolated systems • 0th law • 1st law / energy conservation • Heat / work • Internal energy / enthalpy / heat capacity • State function Mechanical energy Equilibrium / steady state