第七期英语周报2018～2022答案

28.(1)-746.5kJ·mol-1(2分)(2)①1050K前反应未达到平衡状态,随着温度升高反应速率加快,NO转化率增大:20%②4(各2分)(3)I.2NO(g)=N2O2(g)△H=-(E2-E1)kJ·mo-1(2分)Ⅱ.反应②(1分);决定总反应速率的是反应②,升高温度后,反应①平衡逆向移动使NO浓度减小,温度升高对于反应②的影响弱于N2O2浓度减小的影响,N2O2浓度减小使反应②速率变慢(2分)Ⅲ.k1k3/k2(2分)

One possible versionSeveral minutes later, the ice broke suddenly and Harry's feet sank into the water. It was noep, but his legs got wet to the knees. Harry was so upset that the accident would delay hisschedule. He had to find some firewood to build a fire to dry his clothes. He pulled off his glovestook out his matches, and lighted the fire. Seeing the burning fire, he had thought he was safe. Butsuddenly, without warming, a heavy mass of snow dropped down. The flame of hope was put outUnluckily, his dog ran away and the fear of death came over Harry. He had no choice but torun to save himself. However, he did not feel his feet when they hit the ground. Having falleneveral times, he decided to rest a while. As he lay in the snow, he noticed he was not shaking. Hecould not feel his nose or fingers or feet. A feeling of horror came into his mind. It was when herealized he was going to die that he heard a bark and the noise his friends made

以上就是第七期英语周报2018～2022答案，更多英语周报答案请关注本网站。