Essential Chemistry for IGCSE - Chemical Changes (Section 2 - No. 2)
In a fuel cell, how does the hydrogen react at the negative electrode (anode) in an alkaline electrolyte?
H₂ + 2OH⁻ -> 2H₂O + 2e⁻
H₂ -> 2H⁺ + 2e⁻
2H₂O + 2e⁻ -> H₂ + 2OH⁻
O₂ + 4e⁻ + 2H₂O -> 4OH⁻
Explanation
In an alkaline electrolyte, hydrogen reacts with hydroxide ions to produce water and electrons.
Comments (0)
