From the Following Thermochemical Equations,calculate Δ_rH° for the Reaction

question 117

Multiple Choice

From the following thermochemical equations,calculate Δ_rH° for the reaction:
SO₂(g) + NO₂(g) → SO₃(g) + NO(g)
2 SO₂(g) + O₂(g) → 2 SO₃(g) Δ_rH° = -197.8 kJ/mol
2 NO(g) + O₂(g) → 2 NO₂(g) Δ_rH° = -114.14 kJ/mol

• A)-83.66 kJ /mol
• B)-311.9 kJ/mol
• C)+155.9 kJ/mol
• D)-155.9 kJ/mol
• E)-41.83 kJ/mol

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