Question

Why hydrogen is used as a fuel?

Answer 1

Hydrogen fuel is a zero-emission fuel when burned with oxygen (if one considers water not as an emission) or used in a contained cell also capable of 'reversing' the reaction if needed. It often uses electrochemical cells, or combustion in internal engines, to power vehicles and electric devices.

Answer 2

Answer:

There are multiple advantages of using hydrogen as a fuel! Some of them being:

Explanation:

1. In the case of a hydrogen fuel cell, it's a non-polluting source of energy, as water is the only end-product of the reaction (which is a requirement for our very existence).

2. 1 kg of hydrogen gives out nearly 2.5 times the energy given out by 1 kg of natural gas!

3. We can't really run out of hydrogen. It can be produced by the electrolysis of water with a little acid, and even certain algae produce hydrogen. Scientists have also found that it can be made from waste plant material using bacteria.