
Concept explainers
(a)
Interpretation:
A parallel lists for the advantages and disadvantages of using hydrogen as the fuel for transportation and for producing electricity have to be set up.
Concept introduction:
A Fuel is a substance that releases energy when it gets burnt in presence of Oxygen. The phenomenon a substance getting burnt in presence of Oxygen is termed as combustion and it is exothermic process. The larger the amount of heat released per gram of a substance, greater the potential it has to be a fuel.
PEM fuel cell: These cells work with a
(b)
Interpretation:
Hydrogen as fuel for both transportation and electricity production has to be explained as an article.
Concept introduction:
Fuel cell: The fuel cell is a device, which converts the chemical energy into
For example Hydrogen-Oxygen fuel cell, in this cell, Hydrogen is a fuel and Oxygen is an oxidant. The continuous flow of fuel and oxidant is gives a continuous production of current.

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Chapter 8 Solutions
Laboratory Manual Chemistry in Context
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