GKFix MCQ Question

What is the enthalpy change for decomposing 1 mole of CO₂ into C and O₂?

• A. –393.5 kJ mol⁻¹
• B. –283.0 kJ mol⁻¹
• C. +393.5 kJ mol⁻¹
• D. +283.0 kJ mol⁻¹