11.已知:+O2(g)=== ZnO(s).ΔH= -348.3 kJ·mol-1. + O2(g)=== Ag2O(s).ΔH= -31.0 kJ·mol-1. 则Zn(s)+ Ag2O(s) === ZnO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 查看更多

 

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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

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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6.已知:(1)Zn(s)+1/2O2(g)==ZnO(s),ΔH=-348.3kJ/mol

         (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

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 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

 

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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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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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