Galvanic (Voltaic) and Electrolytic Cells

AP Chemistry· difficulty 3/5

A hydrogen fuel cell converts

A
$Light to electricity$
B
$Electricity to fuel$
C
$Heat to electricity$
D
$Chemical energy of H₂ + O₂ \to H₂O directly to electrical work$
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Explanation

No combustion; redox at electrodes drives current with H₂O as the only product.

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