GKFix MCQ Question

What is the significance of the reaction 1/2 N₂(g) + H₂(g) → NH₃(g) having ∆rH⁰ = –46.1 kJ mol⁻¹?

• A. It is an exothermic reaction forming ammonia
• B. It absorbs energy
• C. It is non-spontaneous
• D. It occurs only in sunlight