已知:(1)2Fe(s)+O2(g)=2FeO(s)△H=-544kJ·mol-1(2)2Al(s)+3/2O2(g)=Al2O3(s)△H=-1675kJ·mol-1则2Al(s)+3FeO(s)=

已知:(1)2Fe(s)+O2(g)=2FeO(s)△H=-544kJ·mol-1(2)2Al(s)+3/2O2(g)=Al2O3(s)△H=-1675kJ·mol-1则2Al(s)+3FeO(s)=

问题描述:

已知:
(1) 2Fe(s)+O 2 (g) =2FeO(s)     △H=-544kJ·mol -1
(2) 2Al(s)+3/2 O 2 (g) =Al 2 O 3 (s)   △H=-1675kJ·mol -1
则 2Al(s) +3FeO(s) =Al 2 O 3 (s) + 3Fe(s)的△H为
A.-2491 kJ·mol -1 B.+859 kJ·mol -1
C.-1403 kJ·mol -1 D.-859 kJ·mol -1


最佳答案:

D

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