【单选题】Section B Directions: Thissection is to text your ability to understand short conversations. There are 2recorded conversations in it. After each conversation, there are some recordedquestions. Both th...
【简答题】氨的合成是最重要的化工生产之一。 I.工业上合成氨用的H 2 有多种制取的方法: ① 用焦炭跟水反应: C(s)+ H 2 O(g) CO(g)+ H 2 (g); ② 用天然气跟水蒸气反应:CH 4 (g)+ H 2 O(g) CO (g)+ 3H 2 (g) 已知有关反应的能量变化如下图,则方法②中反应的ΔH =__________ ___。 Ⅱ.在3个1L的密闭容器中,同温度...
【单选题】Section B Directions: Thissection is to text your ability to understand short conversations. There are 2recorded conversations in it. After each conversation, there are some recordedquestions. Both th...