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52. During the discharge of a lead storage battery, the density of sulphuric acid fell from 1.294gm/ml sulphuric acid of density 1.294gm/ml is 39%H2SO4 by wieght and that of density 1.139gm/ml is 20% by wieght the battery holds 3.5 litre of the acid and the volume remained practically constant during the discharge. Calculate the number of ampere -hours for which the battery must have been used.

Answer» 52. During the discharge of a lead storage battery, the density of sulphuric acid fell from 1.294gm/ml sulphuric acid of density 1.294gm/ml is 39%H2SO4 by wieght and that of density 1.139gm/ml is 20% by wieght the battery holds 3.5 litre of the acid and the volume remained practically constant during the discharge. Calculate the number of ampere -hours for which the battery must have been used.


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