모두CBT
25℃에서 탄소가 연소하여 일산화탄소가 될 때 엔탈피 변화량(kJ)은?C+O2(g)→CO2(g)ΔH=−393.5 kJCO+1/2 O2(g)→CO2(g)ΔH=−283.0 kJ\mathrm{C} + \mathrm{O_2(g)} \rightarrow \mathrm{CO_2(g)} \quad \Delta \mathrm{H} = -393.5\,\mathrm{kJ} \\ \mathrm{CO} + 1/2\,\mathrm{O_2(g)} \rightarrow \mathrm{CO_2(g)} \quad \Delta \mathrm{H} = -283.0\,\mathrm{kJ}C+O2(g)→CO2(g)ΔH=−393.5kJCO+1/2O2(g)→CO2(g)ΔH=−283.0kJ
-676.5
-110.5
110.5
676.5