6940. Pick out the wrong unit conversion of calorific value. September 7, 2025 by Admin 1 kcal/kg = 1.8 BTU/lb = 4.186 kJ/kg 1 BTU/ft³ = 8.9 kcal/m³ = 0.038 MJ/m³ 1 BTU/lb = 2.3 kcal/kg 1 kcal/m³ = 0.1124 BTU/ft³ ✅ The correct answer is option C.
