试题 试卷
题型:综合题 题类:模拟题 难易度:普通
广东省肇庆市2017-2018学年高三理综-化学第二次模拟考试试卷
2NO2(g)+NaCl(s) NaNO3(s)+ClNO(g) K1 ΔH1<0 (Ⅰ)
2NO(g)+Cl2(g) 2ClNO(g) K2 ΔH2<0 (Ⅱ)
则4NO2(g)+2NaCl(s) 2NaNO3(s)+2NO(g)+Cl2(g) ΔH =(用ΔH1、ΔH2表示);平衡常数K=(用K1、K2表示)
①CH4(g)+ O2(g)⇌CO(g)+2H2(g)△H=﹣36kJ/mol
②CH4(g)+H2O(g)⇌CO(g)+3H2(g)△H=+206kJ/mol
③CH4(g)+CO2(g)⇌2CO(g)+2H2(g)△H=+247kJ/mol副反应
④CH4(g)+2O2(g)⇌CO2(g)+2H2O (g)△H=﹣889.6kJ/mol
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