试题 试卷
题型:综合题 题类:常考题 难易度:普通
河南省洛阳市2016-2017学年高一下学期化学期末考试试卷
C(s)+H2O(l)=CO(g)+H2(g);△H1=+175.3kJ•mol﹣1
2CO(g)+O2(g)=CO2(g);△H2=﹣566.0kJ•mol﹣1
2H2(g)+O2(g)=2H2O(l);△H3=﹣571.6kJ•mol﹣1 .
已知:①C(s)+O2(g)=CO2(g) △H1=-393.5kJ·mol-1
②2CO(g)+O2(g)=2CO2(g) △H2=-566 kJ·mol-1
③TiO2(s)+2Cl2(g)=TiCl4(s)+O2(g) △H3=+141 kJ·mol-1
则TiO2(s) +2Cl2(g)+2C(s)=TiCl4(s)+2CO(g)的△H是( )
①C(s) + H2O(g)=CO(g) + H2 (g) ΔH1 = akJ·mol−1
②CO(g) + H2O(g)=CO2(g) + H2 (g) ΔH2 = bkJ·mol−1
③CO2 (g) + 3H2 (g)=CH3OH(g) + H2O(g) ΔH3 = ckJ·mol−1
④2CH3OH(g)=CH3OCH3 (g) + H2O(g) ΔH4 = dkJ·mol−1
试题篮