- Electrical cell that are designed to convert energy from the combustion of the fuels directly into electrical energy are called fuel cells. The simplest fuel cell involve the reaction of H2 gas and O2 gas to form H2O. These reactions occur in Alkline medium NaOH & KOH.
In Corrosion- In corrosion a metal is oxidised by loss of electrons and forms metal oxide . It occures in presence of water and oxygen . It is understood that corrosion occurs by couple reaction in which a voltic cell is formed.
The electrons released at the Anode move through the metal and go to the another spot of the metal. At this spot oxygen is reduced in presence of H+ ( Formed by the dissolution of atom CO2 ) . This spot works as cathode.
0 comments