GKFix MCQ Question

What is the enthalpy change for the reaction: CO(g) + ½ O₂(g) → CO₂(g), if the reaction is multiplied by 3?

• A. +849.0 kJ mol⁻¹
• B. –849.0 kJ mol⁻¹
• C. +1174.5 kJ mol⁻¹
• D. –1174.5 kJ mol⁻¹