- 问题详情:已知下列热化学方程式:Zn(s)+1/2O2(g)=ZnO(s)ΔH=-351.1kJ·mol-1①Hg(l)+1/2O2(g)=HgO(s)ΔH=-90.7kJ·mol-1②由此可知Zn(s)+HgO(s)=ZnO(s)+Hg(l)的反应热ΔH为A.-260.4kJ·mol-1 B.+260.4kJ·mol-1 C.-441.8kJ·mol-1 D.+441.8kJ·mol-1【回答】A【解析】【详解】考查盖斯定...
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- 问题详情:已知下列热化学方程式:Zn(s)+O2(g)=ZnO(s) ΔH1=-351.1kJ/molHg(l)+O2(g)=HgO(s) ΔH2=-90.7kJ/mol由此可知Zn(s)+HgO(s)=ZnO(s)+Hg(l)的ΔH3,其中ΔH3的值是 A.-260.4kJ/mol B.-254.6kJ/mol C.-438.9kJ/mol D.-441.8kJ/mol【回答】A知...
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