GKFix MCQ Question

What is the standard enthalpy of formation of CaCO₃(s) based on the given data?

• A. –178.3 kJ mol⁻¹
• B. –1206.9 kJ mol⁻¹
• C. –635.1 kJ mol⁻¹
• D. –393.5 kJ mol⁻¹