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( )