alleryFuel cells directly convert
AHeat energy to electrical energy
BChemical energy of a fuel to electrical energy
CNuclear energy to electrical energy
DSolar energy to electrical energy
Answer & Solution
Correct answer: B. Chemical energy of a fuel to electrical energy
1. Fuel cells use combustion-type reactions but electrochemically.
2. Fuel and oxidiser are supplied continuously to the electrodes.
3. They convert the chemical energy of fuel oxidation directly into electrical energy.
4. Example: H₂/O₂ fuel cell used in Apollo space programme.
_Source: syllabus Chemistry, Unit 3 "Electrochemistry", §3.7_
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