试题 试卷
题型:综合题 题类:常考题 难易度:普通
2016-2017学年安徽省蚌埠市高二上学期期末化学试卷(理科)
Cu(s)+2H+(aq)=Cu2+(aq)+H2(g)△H=+64.39kJ/mol
2H2O2(l)=2H2O(l)+O2(g)△H=﹣196.46kJ/mol
H2(g)+1/2O2(g)=H2O(l)△H=﹣285.84kJ/mol 在H2SO4溶液中Cu与H2O2反应生成Cu2+和H2O的热化学方程式为.
(i) I2(g)+H2(g)⇌2HI(g)+9.48kJ
(ii) I2(s)+H2(g)⇌2HI(g)﹣26.48kJ,下列判断正确的是( )
①2SO2(g)+O2(g) 2SO3(g) ΔH1=-197kJ/mol K1=a
②2NO(g)+O2(g) 2NO2(g) ΔH2=-144kJ/mol K2=b
③NO2(g)+SO2(g) SO3(g)+NO(g) ΔH3=mkJ/mol K3=c
下列说法正确的是( )
⑴CH3COOH(l)+2O2(g)=2CO2(g)+2H2O(l)ΔH1=-870.3 kJ·mol-1
⑵C(s)+O2(g)=CO2(g)ΔH2=-393.5 kJ·mol-1
⑶H2(g)+1/2O2(g)=H2O(l)ΔH3=-285.8 kJ·mol-1
则反应2C(s)+2H2(g)+O2(g)=CH3COOH(l)的反应热为( )
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