CHM310H1 Lecture 19: Lecture 19.docx
Document Summary
Pcbs, different degree of chlorination changes vapor pressure. Large molecule are not water soluble, need to form cavity within water in order to put the molecule into it. The type of interaction in the water. (polarity) Water solubility: in order to assess what determines water solubility, factor need to be considered: energy cost associated to break organic bond h>0, energy cost associated to break hydrogen bond h>0, create organic-water bond h<0. If you are taking a relatively non-polar species, not going to get much energy back, not much interaction with water. If you are taking a polar species, depends on how strongly the interaction of organic-water bond. Entropy changes are subtle, when you put organic substance in water forming some order, the order determine by the types of interaction. 29 (more structure in pure methanol which you extract to dissolve in water)
