试题 试卷
题型:填空题 题类:模拟题 难易度:普通
2016年安徽省六安一中高考化学模拟试卷(三)
2H2(g)+O2(g)═2H2O(g)△H═﹣484KJ/mol
CH4(g)+2O2(g)═CO2(g)+2H2O(g)△H═﹣802KJ/mol
则:CH4(g)+CO2(g)⇌2CO(g)+2H2 (g)△H═.
②2Na(s)+O2(g)═Na2O2(s)△H2=﹣511kJ/mol,
下列说法正确的是( )
请回答下列问题:
①C(s) + H2O(g)=CO(g) + H2 (g) ΔH1 = akJ·mol−1
②CO(g) + H2O(g)=CO2(g) + H2 (g) ΔH2 = bkJ·mol−1
③CO2 (g) + 3H2 (g)=CH3OH(g) + H2O(g) ΔH3 = ckJ·mol−1
④2CH3OH(g)=CH3OCH3 (g) + H2O(g) ΔH4 = dkJ·mol−1
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