Respuesta :
Answer:
The correct answer is option D.
Explanation:
A fuel cell is defined as the electrochemical cell which converts the chemical energy of a fuel (often used hydrogen) and an oxidizing agent (often used oxygen) into electrical energy via a pair of redox reactions.
The reactions which occur in hydrogen-oxygen fuel cell are:
At cathode: [tex]H_2+2OH^-\rightarrow 2H_2O+2e^-[/tex]
At anode: [tex]\frac{1}{2}O_2+H_2O+2e^-\rightarrow 2OH^-[/tex]
As we can see that reaction of hydrogen gas with oxygen gas gives us the water as a product which can be used for other things and it also doesn't pollutes environment.
The main advantages of Hydrogen as a fuel is that it contains a large amount of energy per unit volume of hydrogen gas and its product is water.
Advantages of Hydrogen as a fuel
The reaction of hydrogen gas with oxygen gas gives us the product of water which can be used for other things. This reaction produces a very important molecule which doesn't pollutes our environment.
So we can conclude that main advantages of Hydrogen as a fuel is that it contains a large amount of energy per unit volume of hydrogen gas and its product is water.
Learn more about hydrogen here: https://brainly.com/question/25597694
