题目内容
已知:Fe2O3 (s)+C(s)= CO2(g)+2Fe(s) △H=234.1kJ·mol-1
C(s)+O2(g)=CO2(g) △H=-393.5kJ·mol-1 ,
则 2Fe(s)+O2(g)=Fe2O3(s)的△H是( )
C(s)+O2(g)=CO2(g) △H=-393.5kJ·mol-1 ,
则 2Fe(s)+O2(g)=Fe2O3(s)的△H是( )
A.-824.4kJ·mol- 1 | B.-627.6kJ·mol-1 |
C.-744.7kJ·mol-1 | D.-169.4kJ·mol-1 |
A
略
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