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