jalen
- 25
- 0
A typical automoblie engine uses a lead-acid battery. During discharge, the following chemical reaction takes place.
Pb (s) +PbO2 (s) +2H2SO4 (aq) +2H2O2 (l)
(1) Pb (s) +PbO2 (s) +2SO3 (g) ---> 2PbSO4 (s) H= -775KJ
(2) SO3 (g) + H2O2 (l) ---> H2SO4 (aq) H= -133KJ
Pb (s) +PbO2 (s) +2H2SO4 (aq) +2H2O2 (l)
(1) Pb (s) +PbO2 (s) +2SO3 (g) ---> 2PbSO4 (s) H= -775KJ
(2) SO3 (g) + H2O2 (l) ---> H2SO4 (aq) H= -133KJ
Last edited: