Review previous lecture (2) S.J.T.U. Phase Transformation and Applications Clapeyron equation in vapor equilibria Clapeyron equation pand Talong this line △H Te9△V B Change of the melting point of tin resulting from a pressure change of 500 atm △H 7196 T> Figure 4.4 Pressure-temperature relationship Teg△V 505×4.39×10-7 for equilibrium between phases A and B. △p9=500atm△Te9=+1.58K SJTU Thermodynamics of Materials Spring 2007 ©X.J.Jin Lecture 8 Chemical equilibriumPhase Transformation and Applications S. J. T. U. SJTU Thermodynamics of Materials Spring 2007 © X. J. Jin Lecture 8 Chemical equilibrium Review previous lecture (2) Clapeyron equation in vapor equilibria VT H dT dp eq eq eq Δ Δ = Clapeyron equation Change of the melting point of tin resulting from a pressure change of 500 atm 7 1039.4505 7196 − ×× = Δ Δ = Δ Δ VT H T p eq eq eq p Tatm K eq eq =Δ 500 +=Δ 58.1