Pacemakers implanted in the chests of patients with certain heart conditions are powered by a lithium/iodine PVP battery, where PVP represents polyvinylpyridine. The cell reaction and standard cell potential are given below. The standard reduction potential for Li/Li⁺ is -3.05 V. What species is oxidized in this reaction?
$~~~~~~~~$ 3.59 V

Question

Pacemakers implanted in the chests of patients with certain heart conditions are powered by a lithium/iodine PVP battery, where PVP represents polyvinylpyridine. The cell reaction and standard cell potential are given below. The standard reduction potential for Li/Li⁺ is -3.05 V. What species is oxidized in this reaction?

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3.59 V

Quizplus · Accepted Answer

In the cell reaction, Li is being reduced (since it has the higher reduction potential) while I- is being oxidized. Therefore, the species being oxidized is I-.

Pacemakers Implanted in the Chests of Patients with Certain Heart ~~~~~~~~

Pacemakers Implanted in the Chests of Patients with Certain Heart $~~~~~~~~$