Andrew edited What_makes_a_hydrogen_car__.html  over 8 years ago

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What makes a hydrogen car possible is a device called a fuel cell, which converts hydrogen to electricity, giving off only heat and water as byproducts.where will we get the hydrogen?
How expensive will these fuel-efficient cars be to purchase?
Will you be able to find a hydrogen fuelling station to refill your tank?
And, perhaps most importantly, as a fuel, is hydrogen really as non-polluting as it seems?
 seems?

In 1839, the Welsh scientist Sir William Robert Grove took the familiar electrochemical process of electrolysis, which uses electricity to produce hydrogen from water, and reversed it, generating electricity and water from hydrogen. He called his invention a gas voltaic battery.