题目列表(包括答案和解析)
已知:(1)Zn(s)+O2(g)ZnO(s),ΔH=-348.3 kJ·mol-1, (2)2Ag(s)+O2(g)Ag2O(s),ΔH=-31 .0 kJ·mol-1,则 Zn(s)+Ag2O(s)ZnO(s)+2Ag(s)的ΔH等于 | |
[ ] | |
A. |
-379 .3 kJ·mol-1 |
B. |
-317 .3 kJ·mol-1 |
C. |
-332 .8 kJ·mol-1 |
D. |
317 .3 kJ·mol-1 |
(2) 2Ag(s)+1/2 O2(g)== Ag2O(s),ΔH=-31.0kJ/mol
则Zn(s)+ Ag2O(s)== ZnO(s)+ 2Ag(s)的ΔH等于
A.-317.3kJ/mol B.-379.3kJ/mol C.-332.8 kJ/mol D.317.3 kJ/mol
已知:(1)Zn(s)+O2(g)=== ZnO(s),ΔH= -348.3 kJ·mol-1,
(2)2Ag(s)+ O2(g)=== Ag2O(s),ΔH= -31.0 kJ·mol-1,则Zn(s)+ Ag2O(s) === ZnO(s)+ 2Ag(s)的ΔH等于( )
A.-317.3 kJ·mol-1 B.-379.3 kJ·mol-1 C.-332.8 kJ·mol-1 D.317.3 kJ·mol-1
已知:(1)Zn(s)+O2(g)=== ZnO(s),ΔH1= -348.3 kJ·mol-1,
(2)2Ag(s)+ O2(g)=== Ag2O(s),ΔH2=-31.0 kJ·mol-1,
则Zn(s)+ Ag2O(s) === ZnO(s)+ 2Ag(s)的ΔH等于( )
A.-379.3 kJ·mol-1 B.-317.3 kJ·mol-1
C.-332.8 kJ·mol-1 D.317.3 kJ·mol-1
已知:(1)Zn(s)+O2(g)=== ZnO(s),ΔH1= -348.3 kJ·mol-1,
(2)2Ag(s)+ O2(g)=== Ag2O(s),ΔH2=-31.0 kJ·mol-1,
则Zn(s)+ Ag2O(s) === ZnO(s)+ 2Ag(s)的ΔH等于( )
A.-379.3 kJ·mol-1 B.-317.3 kJ·mol-1
C.-332.8 kJ·mol-1 D.317.3 kJ·mol-1
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