Homework Answers
Given:
Hof(CO(g)) = -110.525 KJ/mol
Hof(O2(g)) = 0.0 KJ/mol
Hof(CO2(g)) = -393.509 KJ/mol
Balanced chemical equation is:
2 CO(g) + O2(g) ---> CO2(g)
ΔHo rxn = 1*Hof(CO2(g)) - 2*Hof( CO(g)) - 1*Hof(O2(g))
ΔHo rxn = 1*(-393.509) - 2*(-110.525) - 1*(0.0)
ΔHo rxn = -172.459 KJ
Answer: -172 KJ
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