版权所有：华东理工大学物理化学教研室 上一页 下一页 返回目录 Part 1: Equilibrium 7. Simple mixtures
版权所有：华东理工大学物理化学教研室 上一页 下一页 返回目录 Part 1: Equilibrium 7. Simple mixtures
版权所有：华东理工大学物理化学教研室 2 The chapter begins by developing the concept of chemical potential to show that it is a particular of a class of partial molar quantities. Then it explores how the chemical potential of a substance is used to describe the physical properties of mixture. The underlying principle is that at equilibrium the chemical potential of a species is the same in every phase. 7. Simple mixtures
版权所有：华东理工大学物理化学教研室 2 The chapter begins by developing the concept of chemical potential to show that it is a particular of a class of partial molar quantities. Then it explores how the chemical potential of a substance is used to describe the physical properties of mixture. The underlying principle is that at equilibrium the chemical potential of a species is the same in every phase. 7. Simple mixtures
版权所有：华东理工大学物理化学教研室 3 The thermodynamic description of mixtures 7.1 Partial molar quantities 7.2 The thermodynamics of mixing 7.3 The chemical potentials of liquid The properties of solutions 7.4 Liquid mixtures 7.5 Colligative properties Activities 7.6 The solvent activity 7.7 The solute activity 7. Simple mixtures
版权所有：华东理工大学物理化学教研室 3 The thermodynamic description of mixtures 7.1 Partial molar quantities 7.2 The thermodynamics of mixing 7.3 The chemical potentials of liquid The properties of solutions 7.4 Liquid mixtures 7.5 Colligative properties Activities 7.6 The solvent activity 7.7 The solute activity 7. Simple mixtures
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
版权所有：华东理工大学物理化学教研室 5 Once the partial molar volumes of the two components of a mixture at the composition (and T) of interest are known, we can state the total volume, V, of the mixture by using = + VnVnV BBAA 7.1 Partial molar quantities
版权所有：华东理工大学物理化学教研室 5 Once the partial molar volumes of the two components of a mixture at the composition (and T) of interest are known, we can state the total volume, V, of the mixture by using = + VnVnV BBAA 7.1 Partial molar quantities