Chapter 9.8, Problem 21P

A)

Interpretation Introduction

Interpretation:

Plot as a function of composition any excess property.

Concept introduction:

The non-ideal behavior of a system is quantified by the excess properties. The excess properties are the deviation between the properties in a real mixture to that of an ideal solution. Some examples of excess properties are volume, enthalpy and internal energy.

B)

Interpretation Introduction

Interpretation:

To establish a functional description for the excess property.

Concept introduction:

The non-ideal behavior of a system is quantified by the excess properties. The excess properties are the deviation between the properties in a real mixture to that of an ideal solution. Some examples of excess properties are volume, enthalpy and internal energy.

C)

Interpretation Introduction

Interpretation:

Plot as a function of composition the molar property which is partial.

Concept introduction:

The change in the properties of the system with respect to the changes in composition of the system at constant pressure and temperature is indicated by the partial molar properties. They are the partial derivatives of an extensive property with respect to the concentration of the component.

D)

Interpretation Introduction

Interpretation:

Explain whether the system is ideal or not.

Concept introduction:

The ideal solution is analogous to an ideal gas mixture. They obey Raoult’s law and their activity coefficient is one. The enthalpy of mixing is also zero.