版权所有：华东理工大学物理化学教研室 4 1) Partial molar volume When the composition of the mixture is changed by the addition of dnA of A and dnB of B, the total volume of the mixture changes by 7.1 Partial molar quantities B B , A A , d d d B A n n V n n V V nTp nTp ⎟⎟⎠⎞ ⎜⎜⎝⎛ ∂∂ + ⎟⎟⎠⎞ ⎜⎜⎝⎛ ∂∂ = = + ddd nVnVV BBAA VA and VB are the partial molar volumes, they vary with composition.版权所有：华东理工大学物理化学教研室 4 1) Partial molar volume When the composition of the mixture is changed by the addition of dnA of A and dnB of B, the total volume of the mixture changes by 7.1 Partial molar quantities B B , A A , d d d B A n n V n n V V nTp nTp ⎟⎟⎠⎞ ⎜⎜⎝⎛ ∂∂ + ⎟⎟⎠⎞ ⎜⎜⎝⎛ ∂∂ = = + ddd nVnVV BBAA VA and VB are the partial molar volumes, they vary with composition