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Question

A lead-acid car battery consists of six identical cells. Each cell carries out the reaction

Pb + PbO2 +

2HSO4^- + 2H^+ --> 2PbSO4 + 2H2O


a. The value of E(degree) for such a cell is 2.04 V. Calculate (Delta)G(degree) for the reaction at 298 K.

Answer in kj/mol


b. On a cold morning a current of 125 amperes is drawn for 15.0 seconds from the car battery. How many grams of Pb would be consumed?

answer in g

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