The value of E_1/2 for the half reaction O₂ + 4H⁺ + 4e⁻ → 2H₂O is 1.23 V.

Name: The value of E 1/2 for the half reaction O 2 + 4H + + 4e − → 2H 2 O is 1.23 V.
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Quizplus · Accepted Answer

The given half-reaction is the standard reduction potential for the conversion of $O_2$ and $H^+$ to $H_2O$, which indeed has a standard electrode potential ($E^\circ$) of +1.23 V under standard conditions (298 K, 1 atm, and 1 M concentrations).

The Value of E1/2 for the Half Reaction O2

The Value of E_1/2 for the Half Reaction O₂