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Relative Partial Molar Quantities (1) S.J.T.U. Phase Transformation and Applications Mixing of A and B to form a solution,the volume changes: AVmixing =VM =Vfimal -Vimitial VM is the volume change upon mixing: Vy =nAVA+nBVB-nALa-nBLB Vy=na(VA-La)-nB(VB-LB) 网-' The relative partial molar volume of A The partial molar volume of A in solution relative to the molar volume of pure A. rel rel Vy =navA +nBVB SJTU Thermodynamics of Materials Spring2006©X.J.Jin Lecture 12 Solution IPhase Transformation and Applications S. J. T. U. SJTU Thermodynamics of Materials Spring 2006 © X. J. Jin Lecture 12 Solution I Relative Partial Molar Quantities (1) Δ mixing M == final −VVVV initial AM A B B A A BVnVnVnVnV B −−+= )()( AM A A B B VVnVVnV B −−−= rel B B rel AM A += VnVnV Mixing of A and B to form a solution, the volume changes: VM is the volume change upon mixing: A A −VV The relative partial molar volume of A The partial molar volume of A in solution relative to the molar volume of pure A. rel V A
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