[Noff]

I have a question where I'm supposed to re-write the equation of the combustion of graphite explicitly showing the transfer of electrons:

C (graphite) + O₂  CO₂

How do I show the transfer of electrons? there don't seem to be any charged species.

Next, I have to find the electromotive force of this cell, E⁰_cell. I could use the equation E = E⁰ - RT/|v|F * ln Q but then ln Q comes to equal 1 since all the components are pure or in a non-solvent state.

[Borek]

Just becasue there are no charged species doesn't mean there was no electron transfer. NaCl is not charged yet charge separation between atoms is obvious.

It is not that obvious in CO₂, but still carbon has been oxidized and oxygen has been reduced.

As for E0 - perhaps you should use delta G?

[Schrödinger]

C (graphite) + O₂  CO₂

How do I show the transfer of electrons? there don't seem to be any charged species.

You wont be able to see any charge species as long as you think of the molecule as a whole. You must look at what happens to every atom.
Hint : oxidation states