Density of H2SO4 in lead accumulator is__________________?
Correct answer: A. 1.25g/cm3
- A. 1.25g/cm3
- B. 1.3g/cm3
- C. 1.20g/cm3
- D. 1.15g/cm3
Explanation
The sulfuric acid electrolyte of a lead-acid accumulator has a density of about 1.25 g/cm3 under the commonly quoted operating condition. This density is higher than that of dilute sulfuric acid because the electrolyte contains substantial H2SO4. The likely mistake is choosing 1.30 g/cm3, which is closer to a more concentrated acid and is not the usual accumulator value.
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