15. Using the information below, calculate ΔHf° for PbO(s)

PbO(s) + CO(g) → Pb(s) + CO2(g) ΔH° = –131.4 kJ
ΔHf° for CO2(g) = –393.5 kJ/mol
ΔHf° for CO(g) = –110.5 kJ/mol

A) –151.6 kJ/mol
B) –283.0 kJ/mol
C) +283.0 kJ/mol
D) –372.6 kJ/mol
E) +252.1 kJ/mol

Question

15. Using the information below, calculate ΔHf° for PbO(s)

PbO(s) + CO(g) → Pb(s) + CO2(g)     ΔH° = –131.4 kJ
               ΔHf° for CO2(g) = –393.5 kJ/mol
               ΔHf° for CO(g) = –110.5 kJ/mol

A) –151.6 kJ/mol
B) –283.0 kJ/mol
C) +283.0 kJ/mol
D) –372.6 kJ/mol
E) +252.1 kJ/mol

anonymous · Answer

the answer is A. But how do you do the work?