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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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Smile23 Smile23
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3 years ago Edited: 3 years ago, bio_man
A typical automobile engine uses a lead-acid battery. During discharge, the following chemical reaction takes place:

Pb (s) + PbO2 (s) + 2H2SO4 Rightwards Arrow 2PbSO4 (aq) + 2H2O (I)
Determine the enthalpy change of this reaction, given the following equations:

1) Pb (s) + PbO2 (s) + 2SO3 (g) Rightwards Arrow 2PbSO4 (s) ΔH°= -775 kJ

2) SO3 (g) + H2O (I) Rightwards Arrow H2SO4 (I) ΔH°= -133 kJ
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bio_manbio_man
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Thanks!
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Thanks
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