Instead of burning fuel like conventional engines, hydrogen fuel cells work through an electrochemical process. To produce electricity, hydrogen atoms are ionized on one side of an electrolyte membrane. While protons slip through, electrons must take the long way around through an external circuit, creating an electrical current as they move. Once the electrons reach the other side and pair off with the protons, the hydrogen combines with oxygen in the air, resulting in a little bit of heat and water as byproducts.
Gasoline, kerosene, diesel, etc. all come from crude oil, but what makes them different? Read on to learn about their differences.
It sounds like a song parody about the exorbitant price of gas in the summer. But did you know that more than 20 different "boutique fuel blends" are sold from June to September?