Qualitative understanding of partition preferences

Introduction
Cavity model
Rules for partitioning
The cavity model in quantitative terms

Selftest
Problems
     1) Give a qualitative explanation
     2) Estimate the extraction efficiency
           Answer
     3) Assign partition constants to substances
           Answer
     4) Fuel accident
           Answer
     5) Mixture of similar isomeres ... ?
           Answer
     6) Extraction with pentane or diethyl ether?
     7) Prediction of partition constants
           Answer
     8) Assign data to substances
           Answer
     9) Explain saturated vapor pressure
     10) Apolar surface
Intermolecular interactions in every day life
FAQ

10) Apolar surface

 

Question:

How would the figure below - with adsorption constants at the quartz/ air interface - look like for an apolar surface with the same van der Waals interaction property as quartz?

Figure 20. Adsorption constants of various compounds on quartz at 15 °C and 90% relative humidity (data from Environ. Toxicol. Chem., 2006, 25(1): 45-51) Journal link Download pdf.
For details on the influence of relative humidity see Crit. Rev. Environ. Sci. Technol., 2004, 34: 339-389 Journal link Download pdf.

 

You can check your answer in the next lesson.

 

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