试题 试卷
题型:单选题 题类:常考题 难易度:普通
2016-2017学年吉林省吉林五十五中高二上学期期中化学试卷
①C (s)+ O2(g)═CO (g)△H=﹣110.5kJ•mol ﹣1
②C (s)+O2 (g)═CO2 (g)△H=﹣393.51kJ•mol ﹣1
则反应:C (s)+CO2(g)═2CO (g) 的△H为( )
N2(g)+O2(g)═2NO(g)△H=+180kJ•mol﹣1
则2CO(g)+2NO(g)═N2(g)+2CO2(g)的△H是( )
① (g)+H2(g)⇌CH3CH2CH2CH3(g)△H1
② (g)+H2(g)⇌CH3CH2CH2CH3(g)△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( )
C2H5OH(g)=C2H5OH(l)△H2=-Q2kJ•mol-1(Q2>0)
C2H5OH(g)+3O2(g)=2CO2(g)+3H2O(g)△H3=-Q3kJ•mol-1(Q3>0)
若使18.4g液态乙醇完全燃烧,最后恢复到室温,则放出的热量为( )kJ
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