已知下列数据:
Fe(s)+O2(g) =FeO(s) △H=-272kJ·mol-1
2Al (s)+O2(g) =Al2O3(s) △H=-1675kJ·mol-1
则2Al(s) +3FeO(s) =Al2O3(s) + 3Fe(s)的△H是( )
A.+859 kJ·mol-1 | B.-859 kJ·mol-1 |
C.-1403 kJ·mol-1 | D.-2491 kJ·mol-1 |
已知下列数据:
Fe(s)+O2(g) =FeO(s) △H=-272kJ·mol-1
2Al (s)+O2(g) =Al2O3(s) △H=-1675kJ·mol-1
则2Al(s) +3FeO(s) =Al2O3(s) + 3Fe(s)的△H是( )
A.+859 kJ·mol-1 | B.-859 kJ·mol-1 |
C.-1403 kJ·mol-1 | D.-2491 kJ·mol-1 |