Calculate for an Electrochemical Cell Reaction That Occurs Under $\to$

question 113

Multiple Choice

Calculate for an electrochemical cell reaction that occurs under acidic aqueous conditions based on the following two half-reactions for which the standard reduction potentials are given.Use the smallest whole-number coefficients possible when balancing the overall reaction.
Cr₂O₇^2- + 14 H⁺ + 6 e^- $\to$ 2 Cr³⁺ + 7 H₂O $\quad$ $\quad$ +1.33 V
CH₃COOH + 4 H⁺ + 4 e^- $\to$ C₂H₅OH + H₂O $\quad$ +0.058 V

• A)"-1610 kJ"
• B)"+1610 kJ"
• C)"-1470 kJ"
• D)"+2880 kJ"
• E)"-2880 kJ"

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