(a)
Interpretation:
How is a fuel cell differing from other batteries has to be described.
Concept introduction:
Battery: It is a storage device used for the storage of chemical energy and for the transformation of chemical energy into electrical energy.
Rechargeable battery work because they use reaction are reversible, while non-rechargeable battery they use reactions are non-reversible.
(b)
Interpretation:
Wheather a PEM fuel cell can be rechargeable cell (or) not has to be explained.
Concept introduction:
PEM fuel cell: These cells work with a
Battery: It is a storage device used for the storage of chemical energy and for the transformation of chemical energy into electrical energy.
Rechargeable battery work because they use reaction are reversible, while non-rechargeable battery they use reactions are non-reversible.
(c)
Interpretation:
Why the combination of H2 and O2 in a fuel cell not classified as combustion has to be explained.
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.
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