Two half-cells have reduction potentials of -0.76 V and -0.13 V respectively. A galvanic cell is made from these two half-cells. Which of the following statements is correct?
Correct answer: B. The electrode of half-cell potential -0.76 V serves as the anode
- A. The electrode of half-cell potential -0.76 V serves as the cathode
- B. The electrode of half-cell potential -0.76 V serves as the anode
- C. The electrode of half-cell potential -0.13 V serves as the anode
- D. The electrode of half-cell potential -0.76 V is the positive electrode
Explanation
In a galvanic (voltaic) cell, the half-cell with the more negative reduction potential will be the site of oxidation and is therefore the anode. The half-cell with the potential -0.76 V has the lower potential, so it will serve as the anode.
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