试题 试卷
题型:单选题 题类:常考题 难易度:普通
黑龙江省大庆十中2017-2018学年高一下学期化学期末考试试卷
①4Al(s)+3O2(g)=2Al2O3(s) ΔH=−2 834.9 kJ·mol−1
②4Al(s)+2O3(g)=2Al2O3(s) ΔH=−3 119.1 kJ·mol−1
由此得出的正确结论是( )
①CH4(g)+2O2(g)═CO2(g)+2H2O(l)△H1;CH4(g)+2O2(g)═CO2(g)+2H2O(g)△H2;
②S(s)+O2(g)═SO2(g)△H1;S(g)+O2(g)═SO2(g)△H2;
③2H2(g)+O2(g)═2H2O(l)△H1;H2(g)+ O2(g)═H2O(l)△H2;
④CaCO3(s)═CaO(s)+CO2(g)△H1;CaO(s)+H2O(l)═Ca(OH)2(s)△H2 .
(ⅰ)I2(g)+H2(g) 2HI(g) ΔH=-9.48 kJ·mol-1
(ⅱ)I2(s)+H2(g) 2HI(g) ΔH=+26.48 kJ·mol-1
下列判断正确的是( )
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