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关于272kJ的百科

已知下列数据:Fe(s)+O2(g)═FeO(s)△H=﹣272kJ•mol﹣12Al(s)+O2(g)═Al...
已知下列数据:Fe(s)+O2(g)=FeO(s)    △H=-272kJ·mol-12Al(s)+O2(g...
 已知:Fe(s)+O2(g)===FeO(s) ΔH1=-272kJ/mol2Al(s)+O2(g)===A...
  •  已知:Fe(s)+O2(g)===FeO(s) ΔH1=-272kJ/mol2Al(s)+O2(g)===A...

  • 问题详情: 已知:Fe(s)+O2(g)===FeO(s)ΔH1=-272kJ/mol2Al(s)+O2(g)===Al2O3(s)ΔH2=-1675kJ/mol则2Al(s)+3FeO(s)===Al2O3(s)+3Fe(s)的ΔH是(    )A.+859kJ/mol             B.-859kJ/mol   C.-1403kJ/mol            D.-2491kJ/mol【回答】B知识点:燃烧...
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已知下列数据:Fe(s)+1/2O2(g)=FeO(s) ΔH=-272kJ/mol;2Al(s)+3/2O2...
  • 已知下列数据:Fe(s)+1/2O2(g)=FeO(s) ΔH=-272kJ/mol;2Al(s)+3/2O2...

  • 问题详情:已知下列数据:Fe(s)+1/2O2(g)=FeO(s) ΔH=-272kJ/mol;2Al(s)+3/2O2(g)=Al2O3(s) ΔH=-1675kJ/mol;则2Al(s)+3FeO(s)=Al2O3(s)+3Fe(s)的ΔH是  A.-859kJ/mol    B.+859kJ/mol       C.-1403kJ/mol     D.-2491kJ/mol【回答】A知识点:化学反应中的能量变化题...
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