Jean-Do57 wrote:
One liter of gasoline is 34 MJ of energy.
hydrogen is 0,24 MJ / mol so it takes 142 mol of hydrogen to have the same energy as in a liter of gasoline.
According to the chemical reaction above, one consumes (2/3) * 142 = 95 mol of aluminum and 142 mol of water to produce this quantity of hydrogen.
This represents, by mass, 2,5 kg of aluminum (27 g / mol) and 2,5 kg of water. It's a lot !
If the engine keeps the same efficiency as with petrol, if it consumes 6L / 100km it will consume 15kg of aluminum and 15 liters of water Km!
Just a question, isn't there something?
Or it was me who understood nothing