题目内容
已知:Fe2O3(s)+3/2C(s)=3/2CO2(g)+2Fe(s) △H=+234.1 kJ/mol;
C(s)+O2(g)=CO2(g)△H= -393.5 kJ/mol
则2Fe(s)+3/2O2(g)=Fe2O3(s)的△H值是( )
A.-824.4 kJ/mol B.-627.6 kJ/mol
C.-744.7 kJ/mol D.-169.4 kJ/mol
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题目内容
已知:Fe2O3(s)+3/2C(s)=3/2CO2(g)+2Fe(s) △H=+234.1 kJ/mol;
C(s)+O2(g)=CO2(g)△H= -393.5 kJ/mol
则2Fe(s)+3/2O2(g)=Fe2O3(s)的△H值是( )
A.-824.4 kJ/mol B.-627.6 kJ/mol
C.-744.7 kJ/mol D.-169.4 kJ/mol