已知下列数据:Fe(s)+1/2O 2 (g) =FeO(s) △H=-272kJ·mol -1 2Al(s)+3/2O

已知下列数据:
Fe(s)+1/2O 2 (g) =FeO(s) △H=-272kJ·mol -1
2Al(s)+3/2O 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是
[ ]
A.+859 kJ·mol -1
B.-859 kJ·mol -1
C.-1403 kJ·mol -1
D.-2491 kJ·mol -1
伟伟龙 1年前 已收到1个回答 举报

deathscythe 花朵

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B

1年前

4
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