CBE 30356 - Lecture Notes - April 25, 2023
Announcements
Class notes
Read through pages 370-383 of the notes and view the online narration below. Don't forget to complete the quiz in Canvas!
The main points of the lecture were
- The Maxwell Equations
- Debye-Huckel Theory
- The Debye Length
Goals:
After this class you should be able to:
- Calculate the Debye length for an aqueous ionic solution
- Understand how this length controls the effect of charged surfaces, influencing things from colloidal stability to charged membrane performance.
Reading
- The class notes.
- The lecture closely follows Chapter 4 of the classic text Colloidal Dispersions by Russel, Saville and Schowalter. If you are going to do research in this area, it's a good purchase...
Problem of the Day:
Demonstration:
David.T.Leighton.1@nd.edu