Given the Reactions Below, Compute ΔH° for the Reaction: (ΔH's

question 5

Multiple Choice

Given the reactions below, compute ΔH° for the reaction: (ΔH's are all given in kJ)
2 MnO₂(s) + CO(g) → Mn₂O₃(s) + CO₂(g)
Reaction ΔH°rxn
MnO₂(s) + CO(g) → MnO(s) + CO₂(g)  - 150.6
Mn₃O₄(s) + CO(g) → 3 MnO(s) + CO₂(g)   - 54.4
3 Mn₂O₃(s) + CO(g) → 2 Mn₃O₄(s) + CO₂(g)   - 142.3

• A) -347.3 kJ
• B) -46.1 kJ
• C) -217.1 kJ
• D) -104.5 kJ
• E) -389.1 kJ

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