Chapter 15, Problem 122A

Interpretation Introduction

Interpretation:

The use of hydrogen gas as a fuel for automobiles needs to be explained. The pros and cons for using hydrogen as fuel needs to be explained.

Concept introduction:

The use of hydrogen for producing energy in a special device known as fuel cell.

Explanation of Solution

For using hydrogen as a fuel for automobiles, hydrogen can be produced at commercial level using the electrolysis of brine. Its storage can be carried out on special metal alloy plates of nickel or cadmium, and it can be used to produce electricity in a hydrogen fuel cell which can be used to power the vehicle. The benefit of using the process is that it will be a very clean source of energy producing pure water as waste product and it will give high energy output. The drawback of using hydrogen as alternative fuel is that it is not a very safe source of energy and is prone to combustion. Also, the processes used in its creation and storage are quite expensive.

Electrolysis of brine gives out hydrogen gas at the cathode. The above stated metals have a high adsorption rate of hydrogen and the fuel cell gives out a large amount of energy.

Conclusion

All the processes, benefits and drawbacks of using hydrogen as automobile fuel have been explained.