The fuelcell reaction generates electricity directly from H2 and O2 . The net reaction is 2H2 + O2 → 2H2O . What potential should the battery generate ( under standard conditions )?
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Answer:
Correct option is
B
O
2(g)
+2H
2
O
(l)
+4e
−
⟶4OH
(aq)
−
In a fuel cell,
Cathode reaction can be written as:
O
2
(g)+2H
2
O(l)+4e
−
→4OH
−
(aq)
Anode reaction can be written as:
H
2
+2OH
−
→2H
2
O+2e
−
Net cell reaction:
2H
2
+O
2
→2H
2
O
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