1. How does hydrogen fuel cell work

Chemical reaction within a hydrogen fuel cell convert hydrogen to gasoline, which can be used to power the car

Chemical reactions within a hydrogen fuel cell produce electricity, which can be used to power an electric motor.****

Hydrogen fuel cells produce water and heat, which can be used to power an electric motor.

Hydrogen fuel cells produce water and heat, which can be converted into gasoline to power the car.

2. How could urine be used as an alternative fuel?

Urine contains hydrogen, which could be used to produce gasoline.

Urine contains water, which could be used to power a fuel cell.

Urine contains ammonia, which could be used to produce gasoline.*****

Urine contains hydrogen, which could be used to power a fuel cell.

1. correct

2. I disagree.
https://www.snopes.com/fact-check/urine-into-electricity/
Perhaps the H2 could be used to power a fuel cell, the last choice.

To find the correct answer to how a hydrogen fuel cell works, you would need to understand the basic principles of how a fuel cell operates. A fuel cell is an electrochemical device that converts the chemical energy from a fuel, in this case, hydrogen, into electricity. You can find more detailed explanations by researching fuel cell technology, the chemical processes involved, and the different types of fuel cells.

As for the question of how urine could be used as an alternative fuel, you could research the composition of urine to determine if it contains any potentially useful components. By understanding the chemical properties of urine, you might uncover whether it could be used to produce hydrogen or ammonia, or if it could be used to power fuel cells directly. Additionally, studying any relevant research or experiments conducted to explore urine as an alternative fuel could provide valuable insights into its viability.