GKFix MCQ Question

What is the standard reaction enthalpy for 2C(graphite,s) + 2O₂(g) → 2CO₂(g)?

• A. –393.5 kJ mol⁻¹
• B. –283.0 kJ mol⁻¹
• C. –787.0 kJ mol⁻¹
• D. +787.0 kJ mol⁻¹