A lead storage battery containing 5.0L of H2SO4 solution is operated for 9.65×105s with a steady current of 100 mA. Assuming volume of the solution remains constant, normality of H2SO4 will :
decrease by 0.40
PbO2(s)+H2SO4(aq)+2H++2e−→PbSO4(s)+2H2O2 mol of H2SO4 consumed≡. of H2SO4=2×96500C.
Hence, equiv. of H2SO4 consumed
decrease in normality =25