A.―317.3kJ/mol B.―379.3kJ/mol C.―332.8 kJ/mol D.317.3 kJ/mol 查看更多

 

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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

則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)+ 1/2O2(g)==ZnO(s)   ΔH = -348.3kJ/mol

             (2)2Ag(s) +1/2 O2(g)== Ag2O(s)   ΔH = -31.0kJ/mol

則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)+1/2O2(g)==ZnO(s),ΔH = -348.3kJ/mol

(2)2Ag(s)+1/2 O2(g)== Ag2O(s),ΔH = -31.0kJ/mol

則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)+1/2O2(g)==ZnO(s),ΔH = -348.3kJ/mol

            (2)2Ag(s)+1/2 O2(g)== Ag2O(s),ΔH = -31.0kJ/mol

則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)+1/2O2(g)==ZnO(s) ΔH=-348.3kJ/mol
(2)2Ag(s)+1/2 O2(g)== Ag2O(s) ΔH=-31.0kJ/mol
則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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