In a Fuel Cell Using Oxygen as the Oxidizer and Hydrogen

question 31

Multiple Choice

In a fuel cell using oxygen as the oxidizer and hydrogen as the fuel, what is the overall cell reaction?

• A) H₂O \(\to\) H₂ + O₂
• B) 2 H₂ + O₂ \(\to\) 2 H₂O
• C) H₂O + 4 e^- \(\to\) 2 H₂ + 4 OH^-
• D) O₂ + 4 H⁺ + 4 e^- \(\to\) 2 H₂O

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