题目内容
已知下列数据:
2Fe(s)+O2(g) =2FeO(s) △H=-544kJ·mol-1
4Al(s)+3O2(g) =2Al2O3(s) △H=-3350kJ·mol-1
则2Al(s) +3FeO(s) =Al2O3(s)+ 3Fe(s)的△H是
A.- 859 kJ·mol-1 B.+859kJ·mol-1
C.-1403 kJ·mol-1 D.-2491 kJ·mol-1
A
解析:略
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已知下列数据:
2Fe(s)+O2(g)=2FeO(s)△H=-544kJ?mol-1
4Al(s)+3O2(g)=2Al2O3(s)△H=-3350kJ?mol-1
则2Al(s)+3FeO(s)=Al2O3(s)+3Fe(s)的△H是( )
2Fe(s)+O2(g)=2FeO(s)△H=-544kJ?mol-1
4Al(s)+3O2(g)=2Al2O3(s)△H=-3350kJ?mol-1
则2Al(s)+3FeO(s)=Al2O3(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 |
已知下列数据:
2Fe(s)+O2(g) =2FeO(s) △H=-544kJ·mol-1
4Al(s)+3O2(g) =2Al2O3(s) △H=-3350kJ·mol-1
则2Al(s) +3FeO(s) =Al2O3(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 |