已知:(1)Fe2O3(s)+3/2C(s)=3/2CO2(g)+2Fe(s),ΔH=+234.1kJ••mol-1
(2)C(s)+O2(g)=CO2(g);ΔH=-393.5kJ••mol-1
则2Fe(s)+ 3/2O2(g)=Fe2O3(s)的ΔH是( )
A.-824.4 kJ••mol-1 | B.-627.6kJ••mol-1 | C.-744.7kJ••mol-1 | D.-169.4kJ••mol-1 |
已知:(1)Fe2O3(s)+3/2C(s)=3/2CO2(g)+2Fe(s),ΔH=+234.1kJ••mol-1
(2)C(s)+O2(g)=CO2(g);ΔH=-393.5kJ••mol-1
则2Fe(s)+ 3/2O2(g)=Fe2O3(s)的ΔH是( )
A.-824.4 kJ••mol-1 | B.-627.6kJ••mol-1 | C.-744.7kJ••mol-1 | D.-169.4kJ••mol-1 |