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题型:单选题 题类:常考题 难易度:普通
2015-2016学年山西省朔州市应县一中高一下学期期中化学试卷
①CH3OH(g)+H2O(g)=CO2(g)+3H2(g);△H=+49.0 kJ•mol﹣1
②CH3OH(g)+1/2O2(g)=CO2(g)+2H2(g);△H=﹣192.9 kJ•mol﹣1
下列说法正确的是( )
①“气化”:C(s)+2H2O(g)=CO2(g)+2H2(g)ΔH1=+90.1kJ·mol-1
②催化液化I:CO2(g)+3H2(g)=CH3OH(g)+H2O(g)△H2=-49.0kJ·mol-1
③催化液化Ⅱ:CO2(g)+2H2(g)=CH3OH(g)+ O2(g)△H3=akJ·mol
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