How much electricity is required to create the electrolysis necessary to extract hydrogen from water?
“Electricity” is the flow of charged particles (commonly electrons). So there is not an answer to “how much” electricity is needed, However, I am sure that is not what you mean to say. In order to split water into Hydrogen gas and Oxygen gas, an electric current can be used. The rate at which the Hydrogen gas is produced is directly proportional to the electric current (units of amps) used through the electrolytic cell. Theoretically, there is no “minimum” current needed, it is just that higher currents will produce Hydrogen faster (higher rate of production) than lower currents. There is, however, a minimum voltage (potential different) which must be applied to the electrolytic cell in order to facilitate breaking the bonds between the Hydrogen and Oxygen. The minimum voltage can be calculated by knowing the reduction potentials of Hydrogen and Oxygen. The electrolytic reaction which occurs to split water is, 2H2O (l) –electrolysis–> 2H2 (g) + O2 (g) But you can break this down in to
