What is the study design referring to?

[suskieanna]

Hello I am working ahead and currently working on my summary note for 3/4 chemistry. in the AOS1 galvanic cells as a source of energy section, the study design is mentioning about separation of half-cells and I don't realy get what it wants us to know about. PLZ HELP!

[huity]

Hello I am working ahead and currently working on my summary note for 3/4 chemistry. in the AOS1 galvanic cells as a source of energy section, the study design is mentioning about separation of half-cells and I don't realy get what it wants us to know about. PLZ HELP!

Hey suskieanna

Good on you for working ahead, that's pretty admirable!
The key points you need to know for "Separation of half-cells" are:
1. Why we separate half cells in galvanic reactions: If the reactants mixed, heat energy would be produced. Thus, reactants are separated so that the transfer of electrons occurs along a wire to generate electrical energy (instead of heat energy). This follows onto the next point in the study design.
2. When answering questions, you need to recognise that it's probably a galvanic question if the half-cells are separated. You should also be able to draw galvanic cells and show the clear separation of the half-cells.

Hope that helped, let me know if you have any other questions