A redox potential desk

You will write the small functions that decide whether a redox reaction goes, how much energy it releases and how far it runs.

The idea. The cell potential is the potential of the oxidising couple minus that of the reducing couple. A positive potential means the reaction goes. At 298 K, $\log K = nE/0.05916$.

Your tasks.

1. Complete cell(ox, red) so that it returns the cell potential in volts.
2. Complete energy_released(n, e) so that it returns the energy released in kJ/mol, using $F = 96.485\ \text{kJ/(V mol)}$.
3. Complete log_k(n, e) so that it returns $\log K$.
4. Complete goes(ox, red) so that it is true when the reaction goes.