Extracting the thermodynamic quantities of solvation from experimental data

3 Extracting the thermodynamic quantities of solvation from experimental data 

In this section we turn to the question of evaluating the pertinent thermodynamic quantities from experimental data. We discuss in this section the case of a solvaton s which does not undergo dissociation in any of the phases. The more complicated case of dissociated solvatons (such as ionic solutes) will be discussed separately in section 7.9. 

Consider two phases a and / in which s molecules are distributed. We do not impose any restrictions on the concentration of s in the two phases. At equilibrium, assuming that the two phases are at the same temperature and pressure, we have the following equation for the chemical potential of s in two phases  

It is important to note that there are no restrictions on the density of s in phase 

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