Batteries

Exercise 5

            

Given the fuel cell:  H2/H+ and O2/H2O The hydrogen is oxidised. The oxygen O2 is reduced to H2O Write the equations of the reactions at the electrodes!

A natural reaction takes place between the strongest reducing agent H2 and the strongest oxidising agent O2: O2+4e-+4H+ 4H2O H2-2e- 2H+