Equilibria part 2

Last month I ran over the basics of equilibria. The rationale for this was that I felt that it was a part of the course that had been poorly answered in the recent IB May examinations. I do need to stress that this is my own personal opinion and not that of the IB. This month I will run over the more difficult concepts associated with equilibrium, Le Chatelier’s principle. Le Chateliers principle allows you to determine what happens to a system ...

Teaching Equilibrium

I've just taught this topic and thought it was worth sharing my ideas as to how I introduced the topic and concept of equilibrium. Firstly, something worth considering before you launch into the topic is when do you teach it? In my opinion it needs to go after energetics. This is because some of the concepts need a good understanding of exothermic and endothermic reactions before one can decide on the effect of temperature on the position of equilibrium. It could ...