Given the Reactions Below,compute Δ_rH° for the Reaction

question 121

Multiple Choice

Given the reactions below,compute Δ_rH° for the reaction:
(ΔH's are all given in kJ/mol)
2 MnO₂(s) + CO(g) → Mn₂O₃(s) + CO₂(g)
Reaction Δ_rH°
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/mol
• B)-46.1 kJ/mol
• C)-217.1 kJ/mol
• D)-104.5 kJ/mol
• E)-389.1 kJ/mol

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