工艺1:丙烷无氧脱氢工艺:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49733e71fab225febe593220a1020051.png)
工艺2:丙烷氧化脱氢工艺:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/480b6f7041bb17c7593fc6565868ed56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85de36c59de4d9eee7cac5ea020e608a.png)
回答下列问题:
(1)根据下表数据,计算无氧脱氢工艺中的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96d529dd8302544058eb2930a98a7d71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b2a6bc4b5ef80a57a78c144749392c.png)
物质 | C3H8(g) | C3H6(g) | H2(g) |
燃烧热(![]() | 2217.8 | 2058.0 | 285.8 |
(2)若提高工艺1丙烷的平衡转化率,下列措施不可行的是___________(填字母)。
A.适当的升高温度 |
B.增大压强 |
C.提高恒容反应容器中丙烷的初始浓度 |
D.向恒压反应容器中的丙烷掺入水蒸气(水蒸气不参与反应) |
![](https://img.xkw.com/dksih/QBM/2021/12/30/2883787248377856/2885800313446400/STEM/da2f5cb2-8f69-4539-9c43-f8bf8f406bb9.png?resizew=469)
用图中数据可知,脱第1个氢原子时,最有可能按路径
(4)工艺1脱氢时,还会产生副产物C2H4,写出生成副产物的化学方程式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fdcf28a557a4d1b73c9544ed16d1c37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caac14bc1b0f733a9c4af26d37810af1.png)
相似题推荐
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ae35a50793a6761166fe83054501885.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d124e342eff4d3ab4e2f7b1f8a4463d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f53190d6ead827a6338b9de847aeaf1.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/462924658fd7a7ece7e63e8bd88d7cb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/633839ae9d2a680db2d6c72984e12ba1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71e7704492116d4c017f8d436a81d287.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66ecc826446c8efd976728b4681a3b44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3d3a40e508d9efe830ca0c0df213f37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3b87dbd5e79622e181601b641fa9f99.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/817c7549085bec9919d0c482fe5a4c6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c9d4b651cef20951928ddbfd159356d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42342d1979557adc1384a39c5076520.png)
则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71e7704492116d4c017f8d436a81d287.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3b87dbd5e79622e181601b641fa9f99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42342d1979557adc1384a39c5076520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/562d5985f000517164f888e6f322784b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/507305ce1c3525e9b935e7c92b3a0ae0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd995178601c2ad7b40f973d268c7bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f62295c36d2e2174908c2bec0eb5b30f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66ecc826446c8efd976728b4681a3b44.png)
温度![]() | 400 | 500 | 800 |
平衡常数K | ![]() | 9 | 1 |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd995178601c2ad7b40f973d268c7bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cd6a537c343e6884a2318a4eb3c917b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98183b7becdd0efb6fe8f57cdcbce983.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbc212a4d1e061e42e2d9ff3c8dc2dfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b49be5fb800b66cdb284b864e8f04a85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7644a7769a5fa1bdab46cc0b2dee2861.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/448214d120a423ca1014cde0d1eaefc8.png)
①若在相同温度和恒容且容积相同的三个密闭容器中,按不同方式投入反应物,测得反应达到平衡时的有关数据如下表:
容器 | 反应物投入的量 | 反应物的转化率 | ![]() | 能量变化![]() ![]() ![]() ![]() |
甲 | 1molCO和![]() | ![]() | ![]() | 放出![]() |
乙 | ![]() | ![]() | ![]() | 吸收![]() |
丙 | 2molCO和![]() | ![]() | ![]() | 放出![]() |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/566edd5feab71f8f01099869da092723.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1db5a7eeaa9baf8bc894d9660a686da6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e9807b28e410cc31a7fade476b4afc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80be796c03c9f06908e8c163a333623f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bae6cc0fa010d08995edbf6631a6b94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b3eb58b1c7096219b1a8b15e358f76b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/197c6e062c3336b88479126a9d59209c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d137c4fcda39e201e5bfd15bfcaea7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ff3d2864b53ce7df83bc75b49d6af5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c77d40c0541440a6b31b6360bcd13bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7145670702b3d32f1b88e242e424a9b2.png)
②若在一体积可变的密闭容器中充入
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02adef58c96ea3f324792f5664dad56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d160feffd25b6bb53d236412a93592b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c01a653e98c7d24c19ef66c12f14e2f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb8f58755aee89fb2cf72ba518dcee2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd995178601c2ad7b40f973d268c7bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/6/97c5e63a-3764-40df-9cb5-ea69d6df5727.png?resizew=278)
写出石墨和二氧化碳反应生成一氧化碳的热化学方程式
(2)核内中子数为N的R2+,质量数为A,则n g它的氧化物(RO)中所含质子的物质的量是
(3)已知:C(s)+O2(g)=CO2(g) △H1
CO2(g)+C(s)=2CO(g) △H2
2CO(g)+O2(g)=2CO2(g) △H3
4Fe(s)+3O3(g)=2Fe2O3(s) △H4
3 CO(g)+Fe2O3(s)=3CO2(g)+2Fe(s) △H5
△H3
(4)Cl2通入FeBr2溶液中,Cl2与FeBr2物质的量之比4︰5,请写出离子方程式
CuCl2(s)=CuCl(s)+
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
CuCl(s)+
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
CuO(s)+2HCl(g)=CuCl2(s)+H2O(g) ΔH3=− 121 kJ·mol− 1
则4HCl(g)+O2(g)=2Cl2(g)+2H2O(g)的ΔH=
(2)硅粉与HCl在300℃时反应生成1mol SiHCl3气体和H2,放出225KJ热量,该反应的热化学方程式为
(3)将SiCl4氢化为SiHCl3有三种方法,对应的反应依次为:
①SiCl4(g)+H2(g)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de4ac184aef047428370bf877105fa50.png)
②3SiCl4(g)+2H2(g)+Si(s)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de4ac184aef047428370bf877105fa50.png)
③2SiCl4(g)+H2(g)+Si(s)+HCl(g)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de4ac184aef047428370bf877105fa50.png)
则反应③的ΔH3
(4)二氧化氯是目前国际上公认的第四代高效、无毒的广谱消毒剂,它可由KClO3在H2SO4存在下与Na2SO3反应制得.请写出反应的离子方程式
(5)氯化铵常用作焊接.如:在焊接铜器时用氯化铵除去铜器表面的氧化铜以便焊接,其反应为:_______CuO+______NH4Cl
![](https://img.xkw.com/dksih/QBM/2019/7/22/2252444258492416/2254638389919744/STEM/3670b544f19b40a28b9c969e38f67bdc.png?resizew=53)
①配平此氧化还原反应方程式
②此反应中若产生0.2mol的气体,则有
编 号 | 往烧杯中加入的试剂及其用量(mL) | 催化剂 | 溶液开始变蓝时间(min) | ||||
0.1 mol/LKI溶液 | H2O | 0.01 mol/LX溶液 | 0.1 mol/L双氧水 | 0.1 mol/L稀盐酸 | |||
1 | 20.0 | 10.0 | 10.0 | 20.0 | 20.0 | 无 | 1.4 |
2 | 20.0 | m | 10.0 | 10.0 | n | 无 | 2.8 |
3 | 10.0 | 20.0 | 10.0 | 20.0 | 20.0 | 无 | 2.8 |
4 | 20.0 | 0 | 10.0 | 10.0 | 40.0 | 无 | t |
5 | 20.0 | 10.0 | 10.0 | 20.0 | 20.0 | 5滴Fe2(SO4)3 | 0.6 |
(1)已知:实验1、2的目的是探究H2O2浓度对H2O2+2H++2I-=2H2O+I2反应速率的影响。实验2中m=
(2)一定温度下,H2O2+2H++2I-=2H2O+I2,反应速率可以表示为:v=k·ca(H2O2)·cb(I-)·c(H+) (k为反应速率常数),则:
①实验4烧杯中溶液开始变蓝的时间t=
②根据上表数据可知,b =
(3)已知I2与X反应时,两者物质的量之比为1∶2。按上面表格中的X和KI的加入量,加入V(H2O2)>
(4)若要探究温度对H2O2+2H++2I-=2H2O+I2反应速率影响,在实验中温度不宜过高且采用水浴加热,其原因是
实验编号 | 反应物 | 催化剂 |
① | 10 mL 2% H2O2溶液 | 无 |
② | 10 mL 5% H2O2溶液 | 无 |
③ | 10 mL 5% H2O2溶液 | 1 mL 0.1 mol·L-1 FeCl3溶液 |
④ | 10 mL 5% H2O2溶液+少量HCl溶液 | 1 mL 0.1 mol·L-1 FeCl3溶液 |
⑤ | 10 mL 5% H2O2溶液+少量NaOH溶液 | 1 mL 0.1 mol·L-1 FeCl3溶液 |
(1)实验①和②的目的是
(2)实验③④⑤中,测得生成氧气的体积随时间变化的关系如图所示。
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/3/51f8ed3d-3866-4e46-a3be-74f9b3058fec.png?resizew=258)
分析该图能够得出的实验结论是
【推荐3】氨是最重要的化学品之一,我国目前氨的生产能力位居世界首位。回答下列问题:
(1)Ⅰ.根据图1数据计算反应
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d73c47c2834733201fddee2d9508edea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9bd5ee2be851888a2f9a34eb2ed75e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24cde03068deb44bd00e929884761b9d.png)
Ⅱ.在一定温度、催化剂存在的条件下,密闭容器中CO与转化为
与
,相关反应如下:
①
②
③
(2)则反应I:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7066d4841337435bf6e7f497c2ebae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9bd5ee2be851888a2f9a34eb2ed75e4.png)
(3)合成氨工厂以“水煤气”和
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5547e0098754a8e3f31bae5d5bcb4dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7644a7769a5fa1bdab46cc0b2dee2861.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98183b7becdd0efb6fe8f57cdcbce983.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5547e0098754a8e3f31bae5d5bcb4dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c78efe83dae3cbc63ebe9b2d2e38b230.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c523e50f790218235eae777f95a8a724.png)
①温度比较:气流a
②气体流速一定,经由催化剂Ⅰ到催化剂Ⅱ,原料转化率有提升,其可能原因是:
③下列说法正确的是
A.合成氨是目前自然固氮最重要的途径
B.利用焦炭与水蒸气高温制备水煤气时,适当加快通入水蒸气流速,有利于水煤气生成
C.体系温度升高,可能导致催化剂失活,用热交换器将原料气可预热并使反应体系冷却
D.终端出口2得到的气体,通过液化可分离出
(4)LiH-3d过渡金属复合催化剂也可用于催化合成氨,已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5547e0098754a8e3f31bae5d5bcb4dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac2388108cfe6dada087fc2980b1b934.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc7d5fac5666c6ba319547117a6289ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7644a7769a5fa1bdab46cc0b2dee2861.png)
方法一:2FePO4(s)+ ___Li2CO3(s)+ ___C(s)⇌ ___LiFePO4(s)+ ___CO(g)
(1)配平该化学方程式
(2)该反应的平衡常数表达式为
(3)一定温度下,在2L密闭容器中发生上述反应。反应进行到20min时,容器内固体的质量减少了5.6g,则0∼20min内一氧化碳的平均反应速率是
方法二:LiFePO4可以通过(NH4)2Fe(SO4)2、H3PO4与LiOH溶液发生共沉淀反应,所得沉淀经80℃真空干燥、高温成型而制得。
(4)共沉淀反应投料时,不将(NH4)2Fe(SO4)2和LiOH溶液直接混合,其原因是
(5)磷酸亚铁锂电池总反应为:FePO4+Li→LiFePO4,放电时,负极为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3d396e7f3a2a8d952a42287e79b10fb.png)
反应Ⅰ:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d547c351ee2557fd493a5620b1ef446.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fbb5d519f981a09188dc18a765e8c43.png)
反应Ⅱ:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67b9f7b1eed515c83bd018d47d0438b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3396e9e066adc1d6e03779938058a9.png)
已知:在标准压力(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92ef5c07c005f1a9f7f4587c9837fb32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26edabbe2c43af4e74203ad34c4eff2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea1e8babee63bfc889ae5a34632284bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea1e8babee63bfc889ae5a34632284bc.png)
物质 | ![]() | ![]() | ![]() | ![]() |
标准摩尔生成焓![]() | ![]() | ![]() | ![]() | 0 |
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac4fe034ddc5dc5c445012d675b82738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b2a6bc4b5ef80a57a78c144749392c.png)
(2)一定温度下,向
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4093defdaafac609aac18fc237d1472.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/789975c49f082e6e07a81f5461eb1c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/688b304d6524804b6a3813e5826de1eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ac32e10c70f8d0b9dd0eff105a6fde3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc2a39beea5adf5d07aea0424ca7a64f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1c5319d0d73ca093b3bf40659871157.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b94eef9296e8e89df584cd528071e34.png)
①下列操作中,能提高
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ac32e10c70f8d0b9dd0eff105a6fde3.png)
A.增加
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ac32e10c70f8d0b9dd0eff105a6fde3.png)
②平衡时容器中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/122c444488982c6a7c883c18a14e6520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c4d9129b79ac985bc46c88b092aeb02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be67926dcdcae9406c284c19b51258b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c828deca2a1458b81f3197336603edb8.png)
(3)吸附在催化剂表面的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1c5319d0d73ca093b3bf40659871157.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe385606322e88ff02712045e1834e43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3396e9e066adc1d6e03779938058a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/392cdb9d30684cce244bef94b8d861b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6706fe00b4e231e62d9ecbec567d526b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ff7942da6c3fc4005256fb1458557c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b958825de99b4a8dbcb6b0153c68fec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96b250e4276bf3f328b03a66765541f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e15e00f40396e914d1d9955bd7785f1f.png)
②已知反应Ⅱ的正反应速率
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bd21dce7cd6fddce4c290af81fa4935.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9906480c564bbbf72ecedd909ba9cdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5fc7e2626bcdf7b6721d3092804a718.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5eb0a11e0a9472eb84ccc3093815ebd1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c5706a5a3120fddcc4a64a4b4c6d220.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/253c838949b6987206019864d07eafde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5fc7e2626bcdf7b6721d3092804a718.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5eb0a11e0a9472eb84ccc3093815ebd1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4079003d1292898e98f11669dc3edce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5fc7e2626bcdf7b6721d3092804a718.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc2a39beea5adf5d07aea0424ca7a64f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/581c04af30b490da1a50555f9c89125c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e15e00f40396e914d1d9955bd7785f1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96b250e4276bf3f328b03a66765541f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f935c5e4a76d7b3eadc6b1438c8ba252.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/22/e2fea215-bb03-4e0c-9d32-6fe3b393329a.png?resizew=198)
其中NO2二聚为N2O4的反应可以迅速达到平衡,体系的总压强p随时间t的变化如下表所示(t=∞时,N2O5(g)完全分解):
t/min | 0 | 40 | 80 | 160 | 260 | 1300 | 1700 | ∞ |
p/kPa | 35.8 | 40.3 | 42.5 | 45.9 | 49.2 | 61.2 | 62.3 | 63.1 |
N2O4(g)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de4ac184aef047428370bf877105fa50.png)
则反应N2O5(g)=2NO2(g)+
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
(2)若提高反应温度至35℃,则N2O5(g)完全分解后体系压强介p∞(35℃)
(3)25℃时N2O4(g)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de4ac184aef047428370bf877105fa50.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/22/a1b49d29-2d48-4a1a-a898-6b795762ec03.png?resizew=631)
(4)邻二甲苯经硝化得到两种一硝化产物:3-硝基邻二甲苯(3-NOX)和4-硝基邻二甲苯(4-NOX)。某研究小组研究了采用N2O5为硝化剂时催化剂用量对该反应的影响。将一定量的催化剂和邻二甲苯置于反应瓶中,控制温度反应一定时间。测得邻二甲苯的转化率和3-NOX的选择性如图所示:
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/21/a028aa8b-0400-4d68-92dc-85b5fda747e8.png?resizew=289)
①描述并解释随着催化剂用量的增加,邻二甲苯转化率的变化趋势:
②在图中画出4-NOX的选择性随催化剂用量变化的曲线
(1)CO还原NO的脱硝反应:2CO(g)+2NO(g)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de4ac184aef047428370bf877105fa50.png)
已知:CO(g)+NO2(g)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de4ac184aef047428370bf877105fa50.png)
N2(g)+2O2(g)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de4ac184aef047428370bf877105fa50.png)
N2(g)+O2(g)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de4ac184aef047428370bf877105fa50.png)
脱硝反应△H=
(2)某温度下,向体积为2L的恒容容器中通入2.00molNO2,发生反应:2NO2(g)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de4ac184aef047428370bf877105fa50.png)
t/min | 0 | 20 | 40 | 60 | 80 |
φ((NO2) | 1.0 | 0.75 | 0.52 | 0.50 | 0.50 |
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0764add96a9106b20d1b89964ea8358a.png)
(3)用间接电化学法除去NO的过程,如图所示:
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/8/74bb4cb4-c9fd-4b69-b492-a2dff10789af.png?resizew=315)
①已知电解池的阴极室中溶液的pH在4~7之间,写出阴极的电极反应式:
②用离子方程式表示吸收池中除去NO的原理:
【推荐2】资源利用具有重要意义。
(1)工业上用二氧化碳催化加氢可合成乙醇,其反应原理为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a0096a7e72a4e5f93b2394ad47e3e16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09bb77e8c5d3a5f85af4ba3b76519cda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5aa59337f07d05caf6952bcfec1e090.png)
温度 | 400 | 500 |
平衡常数 | 9 | 5.3 |
①通过表格中的数值可以推断:该反应在
②的平衡转化率与氢碳比
及压强随温度变化的关系分别如图
和图
所示。
图中氢碳比
从大到小的顺序为
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4298cb837170c021b9f2cd4e674a6a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ebbcdaa6045710aec0dce0c76c85835.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80b09e2a3dd9d99a03c3b3f585d9d237.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c424e9f778fdc2a13a59898ab0ccbbe3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd22b38b2826d9ea0c76f5ffd300c1a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99f54f19fd88e44fe8edb979945b4154.png)
①图中曲线代表乙烯的物质的量随温度的变化关系的是
②℃时,化学平衡常数
的平衡转化率为
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4298cb837170c021b9f2cd4e674a6a3.png)
在催化剂作用下,参与反应的机理如图所示
表示乙苯分子中
或
原子的位置; A、B为催化剂的活性位点,其中
位点带部分正电荷,
位点带部分负电荷)。根据元素电负性的变化规律,图中所示的反应机理中步骤I和步骤II可描述为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4298cb837170c021b9f2cd4e674a6a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7644a7769a5fa1bdab46cc0b2dee2861.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5a122e25cf4eb9f03ffe5ec823bfc31.png)
方法Ⅰ:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4298cb837170c021b9f2cd4e674a6a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4298cb837170c021b9f2cd4e674a6a3.png)
相关化学键的键能数据
化学键 | ![]() | ![]() | ![]() | ![]() |
键能![]() | 742 | 414 | 1046 | 436 |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/579ebe0b6fc5a61c8d20d93ad7da5a82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b2a6bc4b5ef80a57a78c144749392c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09b51ee6fe038c30ffb16019af67a9fe.png)
(2)已知某一温度时
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cc1658e36ca2c11087dd96523bc31de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4298cb837170c021b9f2cd4e674a6a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/521981899ff2eb449d1f8f58a6217903.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba8d41defa28f4f06acefb19b1286146.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7644a7769a5fa1bdab46cc0b2dee2861.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34023c46bf0e4d881ab7fa55735af36e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fea79fe3bef4b58fdb4d11a308ad8fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34023c46bf0e4d881ab7fa55735af36e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4da6e034eed47fe702e40f6d2ee058e5.png)
(3)热力学分析表明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbce06e44672625f703bb6be552e835f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5a122e25cf4eb9f03ffe5ec823bfc31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e82341579d89ce8da9ee378ca6505375.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eff19349a80467d65564cc2953f0c978.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f32633f922f04deafc7fbd49e0027b29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5791b5aa09fdfb02fda21c834451ec11.png)
方法Ⅱ:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4298cb837170c021b9f2cd4e674a6a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f7d495c23bb8d68d051b4da4f3fc2dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34ff3d913ce7389422f45dd15b65e9aa.png)
反应a:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/143686593e5d3a2407a20e46faa9aabe.png)
反应b:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64f4e1cf8f7f5dddd5a1a2dfe88a1a17.png)
(4)将原料气按
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89da6b476beffcf109589441162144f0.png)
![](https://img.xkw.com/dksih/QBM/2023/2/16/3176132385914880/3176608301031424/STEM/1d6bc0825ede40c4b661146721b6ab10.png?resizew=238)
(5)理论上,适当增大氢气在混合物中的比例,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4298cb837170c021b9f2cd4e674a6a3.png)