关于H2341kJmol的百科

• 已知：Fe2O3(s)+3/2C(s)=3/2CO2(g)+2Fe(s)   △H=+234.1kJ/mol；...

• 问题详情：已知：Fe2O3(s)+3/2C(s)=3/2CO2(g)+2Fe(s)   △H=+234.1kJ/mol；        C(s)+O2(g)=CO2(g)   △H=-393.5kJ/mol则2Fe(s)+3/2O2(g)=Fe2O3(s)的△H值是(     )A.-824.4kJ/mol            B.-627.6kJ/molC.-744.7kJ/mol       ...
• 2020-10-1129993