Identify the components of a fuel cell. zinc-manganese hydrogen-oxygen nickel-metal hydride lithium ion nickel-cadmium

Components of Fuel cell are Hydrogen and Oxygen gases.

Explanation:

Fuel cells are electrochemical devices which converts chemicals i. e. a fuel like H ₂ and oxidants like O₂ into direct current (D. C).

As we know when hydrogen is reacted with oxygen it produces water along with heat. Same reaction is carried out in fuel cells in a very controlled way.

The Hydrogen gas is oxidized at anodes to convert it into H ⁺ ions and electrons.

At Anode:

2 H₂ → 4 H⁺ + 4 e⁻

These electrons are passed through external circuit to Cathode. Meanwhile, the H⁺ ions passes through the porous anode to electrolyte to cathode chamber.

The electrons arrived at cathode reduces oxygen gas to O²⁻.

At Cathode:

O₂ + 4 e⁻ → 2 O²⁻

In cathode chamber O²⁻ reacts with H⁺ to produce water.

2 O²⁻ + 4 H⁺ → 2 H₂O

This water produced is utilized by Astronomers in Satellites.