Here are the lecture notes for 23 January in PDF format . They are also given in JPG format below.
Note: I decided to introduce F differently than the book does. This is not because I think the book is wrong, I just prefer to do things differently sometimes for variety. With any luck, you will also be able to appreciate that there's more than one way to think about F, and where it comes from.
Here is another discussion of the Helmholtz free energy F that you might find VERY helpful, especially to develop intuition about F. The TA discussed this material in greater detail in the tutorials on 26-27 January.
Note from the Prof
Those of you who can't be
bothered to come to tutorials should bother. Why? Well, I am
generally going to be having material discussed during tutorial that
cannot be obtained in lectures, lecture notes, or elsewhere. Also, if
you do not come to tutorials, please do not complain if a midterm,
final exam, or homework problem seems unfamiliar when it was discussed
in a tutorial (or, for that matter, was discussed in lecture but not
lecture notes). Tutorials-only and lectures-only material is FAIR
GAME for the midterm and final exams, and the homeworks!


