试题 试卷
题型:单选题 题类:常考题 难易度:普通
吉林省公主岭市2018-2019学年高二上学期化学期末考试试卷
2H2(g)+CO(g)⇌CH3OH(g)△H=﹣90.0kJ•mol﹣1①
2CH3OH(g)⇌CH3OCH3(g)+H2O(g)△H=﹣24.5kJ•mol﹣1②
CO(g)+H2O(g)⇌CO2(g)+H2(g)△H=﹣41.1kJ•mol﹣1③
请回答下列问题:
已知25℃、101kPa下:
H2(g)+1/2O2(g)=H2O(g) △H1=-242kJ/mol
CH3OH(g)+3/2O2(g)=CO2(g)+2H2O(g) △H2=-676kJ/mol
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