题目内容
已知:(1)Zn(s)+1/2O2(g)=ZnO(s) △H=-348.3kJ·mol-1
2Ag(s)+1/2O2(g)=Ag2O(s) △H=-31.0kJ·mol-1
则Zn(s)+Ag2O(s)=ZnO(s)+2Ag(s)的△H等于
2Ag(s)+1/2O2(g)=Ag2O(s) △H=-31.0kJ·mol-1
则Zn(s)+Ag2O(s)=ZnO(s)+2Ag(s)的△H等于
[ ]
A.-317.3kJ·mol-1
B.-379.3kJ·mol-1
C.-332.8kJ·mol-1
D.+317.3kJ·mol-1
B.-379.3kJ·mol-1
C.-332.8kJ·mol-1
D.+317.3kJ·mol-1
A
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相关题目
已知:(1)Zn(s)+Ag2O(s)═ZnO(s)+2Ag(s)△H=-317.3kJ?mol-1
(2)Ag2O(s)═2Ag(s)+
O2(g)△H=+31.0kJ?mol-1
则Zn(s)+
O2(g)═ZnO(s),△H等于( )
(2)Ag2O(s)═2Ag(s)+
1 |
2 |
则Zn(s)+
1 |
2 |
A、-348.3kJ?mol-1 |
B、+348.3kJ?mol-1 |
C、-286.3 kJ?mol-1 |
D、+286.3kJ?mol-1 |