Eli5: Why do automobiles operate with diesel or petrol but not with water?
In: Physics
Explaining like you’re five:
Water is stubbornly lazy and doesnt want to change using it’s own energy.
It only changes into other things when something else helps. Such as electricity helping the bonds between hydrogen and oxygen break. Doing all the work.
Other fuels are full of energy and only either needs a little nudge to work (for petrol), or works well under pressure (with diesel). They then release all that stored energy (by burning), change into a different form with a lower energy state.
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