试题 试卷
题型：单选题 题类：常考题 难易度：普通
吸热反应和放热反应b 40
①太阳光催化分解水制氢：2H2O(l)=2H2(g)＋O2(g) ΔH1＝＋571.6 kJ·mol－1
②焦炭与水反应制氢：C(s)＋H2O(g)= CO(g)＋H2(g) ΔH2＝＋131.3 kJ·mol－1
③甲烷与水反应制氢：CH4(g)＋H2O(g)=CO(g)＋3H2(g)ΔH3＝＋206.1 kJ·mol－1
① H2(g)+ O2(g)＝H2O(l) ΔH ＝-285kJ/mol
② H2(g)+ O2(g)＝H2O(g) ΔH ＝-241.8kJ/mol
③ C(s)+ O2(g)＝CO(g) ΔH ＝-110.4 kJ/mol
④ C(s)+ O2(g)＝CO2(g) ΔH ＝-393.5 kJ/mol
回答下列各问：
试题篮
O2(g)＝H2O(l) ΔH ＝-285kJ/mol O2(g)＝H2O(g) ΔH ＝-241.8kJ/mol O2(g)＝CO(g) ΔH ＝-110.4 kJ/mol
