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题型:单选题 题类:常考题 难易度:普通
浙江省嘉兴市第一中学2018-2019学年高三上学期化学期末考试试卷
① H2(g) +I2(?) 2HI(g) △H1=-9.48kJ·mol-1
② H2(g) +I2(?) 2HI(g) △H2=+26.48kJ·mol-1
下列判断错误的是( )
N2(g)+O2(g)=NO2(g)△H2
N2(g)+ H2(g)=NH3(g)△H3
则反应2NH3(g)+ O2(g)=2NO2(g)+3H2O(g)的△H为( )
H2S(g)+ O2(g)═SO2(g)+H2O(g)△H1
2H2S(g)+SO2(g)═ S2(g)+2H2O(g)△H2
H2S(g)+ O2(g)═S(g)+H2O(g)△H3
2S(g)═S2(g)△H4
则△H4的正确表达式为( )
CO(g)+ O2(g)= CO2(g) ΔH=−283.0 kJ·mol−1②
C(石墨)+O2(g)= CO2(g) ΔH=−393.5 kJ·mol−1③
则4Fe(s)+3O2(g)= 2Fe2O3(s)的ΔH为( )
②2Ag(s)+1/2O2(g)=Ag2O(s) ΔH=-31.0kJ·mol-1
则Zn与Ag2O反应生成ZnO和Ag的热化学方程式为( )
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