272kJ的知识精选

已知下列数据:Fe(s)+O2(g)═FeO(s)△H=﹣272kJ•mol﹣12Al(s)+O2(g)═Al...
问题详情:已知下列数据:Fe(s)+O2(g)═FeO(s)△H=﹣272kJ•mol﹣12Al(s)+O2(g)═Al2O3(s)△H=﹣1675kJ•mol﹣1则2Al(s)+3FeO(s)═Al2O3(s)+3Fe(s)的△H是()A.+859kJ•mol﹣1B.﹣859kJ•mol﹣1C.﹣1403kJ•mol﹣1D.﹣2491kJ•mol﹣1【回答】B知识点:化学反应中的能量变化题...
已知下列数据:Fe(s)+O2(g)=FeO(s)    △H=-272kJ·mol-12Al(s)+O2(g...
问题详情:已知下列数据:Fe(s)+O2(g)=FeO(s)    △H=-272kJ·mol-12Al(s)+O2(g)=Al2O3(s)  △H=-1675kJ·mol-1则2Al(s)+3FeO(s)=Al2O3(s)+3Fe(s)的△H是A.+859kJ·mol-1                       B.-859kJ·...
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