9. In a common car battery, six identical cells each carry out the following reaction:
Pb + PbO₂ + 2HSO₄^- + 2H⁺ → 2PbSO₄ + 2H₂O
For such a cell, Eº is 2.04 V. Calculate ΔG° (in kJ) at 25°C.
(A)-787
(B)-1182
(C)-394
(D)-197
(E)-2364

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