Which of the processes listed occurs during...

Question 1 / 270705eccefa3bacbc34ba4d47ff2

Question 1 of 270705eccefa3bacbc34ba4d47ff2

Which of the processes listed occurs during the charging of a lead-acid storage battery?

Question 1 of 27070

Which of the processes listed occurs during the charging of a lead-acid storage battery?

🔍 Key Concepts

• Chemical changes in a lead-acid battery during discharge vs. during charge • The original (fully charged) active materials on the positive plate and negative plate • What lead sulfate (PbSO₄) turns into when the battery is recharged

💭 Think About

• First, recall what materials are on the positive and negative plates when the battery is fully charged. Then, think about what BOTH plates gradually turn into during discharge. • Now reverse that process: during charging, what must happen to the lead sulfate that formed on each plate during discharge? • Look at each choice and ask: does this describe the battery going back to its original charged condition, or does it actually describe the discharge process or an impossible condition?

✅ Before You Answer

• Be clear on this sequence: charged → discharged → recharged and which materials appear at each step. • Verify which plate contains lead peroxide (PbO₂) when charged and which plate contains sponge lead (porous Pb) when charged. • Check whether the option you pick shows lead sulfate being converted back to the original charged materials, rather than the other way around.

Question 1 of 27070

Which of the processes listed occurs during the charging of a lead-acid storage battery?

Both plates change to sponge lead.

Lead sulfate is changed to lead peroxide in the positive plates and sponge lead in the negative plates respectively.

Both plates change to lead peroxide.

Lead peroxide in the positive plates and sponge lead in the negative plates change to lead sulfate.

Question 1 / 270705eccefa3bacbc34ba4d47ff2

Question 1 of 270705eccefa3bacbc34ba4d47ff2

Which of the processes listed occurs during the charging of a lead-acid storage battery?

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Question 1 of 27070

Which of the processes listed occurs during the charging of a lead-acid storage battery?