why hydrogen not used as a fuel ?
HYDROGEN is not used as a fuel even though it has the highest clarofic value for the following points:-
- It is lighter than air and thus it is not easily available.
- it is flammable and burns very rapidly.
- it cannot be used in liquid form bcoz it melting point is -253 degree C.
- it cannot b transported easily.
- Hydrogen gas leaking into external air may spontaneously ignite.
- Moreover, hydrogen fire, while being extremely hot, is almost invisible, and thus can lead to accidental burns
- Hydrogen poses unique challenges due to its ease of leaking, low-energyignition, wide range of combustible fuel-air mixtures,buoyancy, and its ability toembrittle metals