试题 试卷
题型:单选题 题类:常考题 难易度:普通
2016-2017学年海南省琼海市嘉积中学高二上学期期中化学试卷(理科)
①CH4(g)+O2(g)═CO2(g)+2H2O(g)△H1
CH4(g)+2O2(g)═CO2(g)+2H2O(1)△H2
②NaOH(aq)+ H2SO4(浓)═ Na2SO4(aq)+H2O(1)△H3
NaOH (aq)+CH3COOH( aq)═CH3COONa( aq)+H2O(1)△H4 .
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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