Fuel cell origins: Identify who invented the first fuel cell in 1839. Full question: Who invented fuel cells in 1839? Choose the correct option.

Difficulty: Easy

Sir William Grove
Michael Faraday
Humphry Davy
Alessandro Volta

Correct Answer: Sir William Grove

Explanation:

Given data

Year: 1839.
Device: Fuel cell (gaseous fuel + oxidant → electricity).

Concept / Approach
Sir William Robert Grove demonstrated the first fuel cell (then called the "gas voltaic battery") combining hydrogen and oxygen to produce electricity and water.

Option analysis
Sir William Grove — Correct. Faraday/Davy/Volta — Foundational electrochemists, but not the 1839 fuel cell inventor.

Final Answer
Sir William Grove.

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