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已知: (1)Zn(s)+1/2O2(g)=ZnO(s) ΔH=-348.3 kJ/mol (2)2Ag(s)+1/2O2(g)=Ag2O(s) ΔH=-31.0 kJ/mol 则Zn O(s)+2A...
题目内容:
已知: (1)Zn(s)+1/2O2(g)=ZnO(s) ΔH=-348.3 kJ/mol
(2)2Ag(s)+1/2O2(g)=Ag2O(s) ΔH=-31.0 kJ/mol
则Zn O(s)+2Ag(s)=Zn(s)+Ag2 O(s)的△H 等于()
A. -317.3kJ/mol B. -379.3kJ/mol C. +317.3kJ/mol D. -332.8kJ/mol
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