What happens to the concentration of Sulphuric acid when a lead storage battery is on discharge?

In the discharged state, both the positive and negative plates become lead(II) sulfate (PbSO4). The electrolyte loses much of its dissolved sulfuric acid and becomes primarily water.

How does the concentration of sulfuric acid change in lead storage battery when current is drawn from it?

The concentration of sulphuric acid decreases when current is drawn from it.

What is the concentration of Sulphuric acid in a lead battery electrolyte?

Battery acid is sulfuric acid which has been mixed with water to reach a concentration level of 37 percent. This same form of acid is found in sealed lead acid batteries, although certain labels vary in concentration levels.

What happens when a lead storage battery is discharged?

When a lead storage battery is discharged, then sulphuric acid is consumed. Hence, the option D ) is the correct answer. Note: During recharging, sulphuric acid is formed. The overall reaction during charging is the reaction between lead sulphate and water to form lead, lead dioxide and sulphuric acid.

Which of the following concentration decrease as the lead acid storage battery is discharged?

The concentration of H2SO4 decreases during the working of the lead storage battery. The conversion of electrical energy into chemical energy by applying an external electrical source is known as the charging of a battery.

Why is sulphuric acid used in batteries?

The formation of the lead sulphate products involves sulphuric acid, which is the electrolyte used in these batteries. Because sulphuric acid is consumed during the discharge process and released during the charge process, the specific gravity of the electrolyte changes during battery use and charge.

What is the concentration of electrolyte used in lead acid battery?

The electrodes used in the battery system are Lead (Pb) and Lead Dioxide (PbO2) plates with size of 13.5 cm × 7.5 cm. The electrolyte is sulfuric acid with 4 different concentrations (20, 30, 40, and 50\%).

What is the chemical reaction in a lead acid battery?

They generate electricity through a double sulfate chemical reaction. Lead and lead dioxide, the active materials on the battery’s plates, react with sulfuric acid in the electrolyte to form lead sulfate.

Which one is correct reaction in lead storage battery at anode when battery charged?

The lead acid battery uses lead as the anode and lead dioxide as the cathode, with an acid electrolyte. During the charging process, the reactions at each electrode are reversed; the anode becomes the cathode and the cathode becomes the anode.

What is the concentration of H2SO4 in lead storage cell?

A lead storage cell is discharged which causes the H2SO4 electrolyte from a concentration of 34. 6\% by mass (density 1.261 g ml−1 at 28oC) to one of 27\% by mass. The original volume of electrolyte is one litre.