2022届金太阳1月百万联考(3001C)英语试题答案

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2022届金太阳1月百万联考(3001C)英语试题答案

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18.(14分)(1)①-92kJ·mol-(2分)②124(1分)N2+3·H2=2·N+6·H(2分)(2)①10%(2分)②0.0225mol·L-·min-1(2分(3)①L2(1分)该反应的正反应为放热反应,升高温度平衡逆向移动,逆反应的平衡常数增大(2分)②1(2分)【解析】(1)①由图中信息知,△H=-(500-308100)kJ·mo-=-92kJ·mol-②对总反应速率影响较小的步骤为反应速率快、活化能小的步骤,由图可知,·N2+3·H2转化为2·N+6·H的活化能小,对总反应速率影响小,其活化能为(90+34)kJ·mol-,该步骤的化学方程式为·N2+3·H2-2·N+6·H。(2)①起始加入N2和H2的物质的量之比等于化学计量数之比,故平衡时二者的体积分数之比为1:3则N2的平衡体积分数为1-60%=10%,②设平衡时NH3的物质的量为xmol,依据三段式列式得,-x×100%=60%,解得x=1.5,由此推知参加反应的H2的物质的量为2.25mol,0~10min内,uH,2. 25 mol10 LX10 min=0.0225mol·L-·min-1,(3)①合成氨反应为放热反应,升高温度平衡逆向移动,逆反应的平衡常数增大,正反应的平衡常数减小,则L2表示逆反应的平衡常数与温度变化关系的曲线。②由图可知,T℃时,正、逆反应的平衡常数相等且互为倒数故该温度下K。(正)=K.(逆)=1。由平衡时正、逆反应速率相等可知,1=远=k·CN)·d(H2)m1k·c2(NH3)

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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