早教吧 育儿知识 作业答案 考试题库 百科 知识分享

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)=Al2O3(s)+3Fe(s)的△H为A.-2491kJ·mol-1B.+859

题目详情
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
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
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
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
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
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

2 -1
2 2 3 -1
2 3
A.-2491 kJ·mol -1 B.+859 kJ·mol -1
C.-1403 kJ·mol -1 D.-859 kJ·mol -1
A.-2491 kJ·mol -1 B.+859 kJ·mol -1 C.-1403 kJ·mol -1 D.-859 kJ·mol -1 A.-2491 kJ·mol -1 B.+859 kJ·mol -1 A.-2491 kJ·mol -1 -1 B.+859 kJ·mol -1 -1 C.-1403 kJ·mol -1 D.-859 kJ·mol -1 C.-1403 kJ·mol -1 -1 D.-859 kJ·mol -1 -1
▼优质解答
答案和解析
D
D
D
D
D
D