题型:判断题 已知:Fe2O3 (s)+C(s)= CO2(g)+2Fe(s) △H=234.1kJ·mol-1C(s)+O2(g)=CO2(g) △H=-393.5kJ·mol-1 则2Fe(s)+O2(g ) = Fe2O3(s) 的△H是A.-824.4kJ·mol-1B.-627.6kJ·mol-1C.-744.7kJ·mol-1D.-169.4kJ·mol-1 查看答案