云南省2009届高三第二次统测
数学（理）
本试卷分第I卷（选择题）和第II卷（非选择题）两部分。考试结束后，将本试卷和答题卡一并交回。满分150分，考试用时120分钟。
第Ⅰ卷（选择题，共60分）
注意事项：
1．答题前，考生务必用黑色碳素笔将自己的姓名、准考证号、考场号、座位号在答题卡上填写清楚，并认真核准条形码上的准考证号、姓名、考场号、座位号及科目，在规定的位置贴好条形码。
2．每小题选出答案后，用2B铅笔把答题卡上对应题目的答案标号涂黑。如需改动，用橡皮擦擦干净后，再选涂其他答案标号。在试题卷上作答无效。
参考公式：
如果事件A、B互斥，那么 球的表面积公式
P(A+B)=P(A)+P(B)
如果事件A、B相互独立，那么
P(A?B)=P(A)?P(B) 其中R表示球的半径
如果事件A在一次试验中发生的概率是 球的体积公式
P，那么n次独立重复试验中事件A恰 
好发生k次的概率 其中R表示球的半径
本卷共12小题，每小题5分，共60分。在每小题给出的四个选项中，只有一项是符合题目要求的。
云南省2009届高三第二次统测
数学（文）
本试卷分第I卷（选择题）和第II卷（非选择题）两部分。考试结束后，将本试卷和答题卡一并交回。满分150分，考试用时120分钟。
第Ⅰ卷（选择题，共60分）
注意事项：
1．答题前，考生务必用黑色碳素笔将自己的姓名、准考证号、考场号、座位号在答题卡上填写清楚，并认真核准条形码上的准考证号、姓名、考场号、座位号及科目，在规定的位置贴好条形码。
2．每小题选出答案后，用2B铅笔把答题卡上对应题目的答案标号涂黑。如需改动，用橡皮擦擦干净后，再选涂其他答案标号。在试题卷上作答无效。
参考公式：
如果事件A、B互斥，那么 球的表面积公式
P(A+B)=P(A)+P(B)
如果事件A、B相互独立，那么
P(A?B)=P(A)?P(B) 其中R表示球的半径
如果事件A在一次试验中发生的概率是 球的体积公式
P，那么n次独立重复试验中事件A恰 
好发生k次的概率 其中R表示球的半径
本卷共12小题，每小题5分，共60分。在每小题给出的四个选项中，只有一项是符合题目要求的。
1. Fireworks add to the attraction of the festival night.
2. "We're having a class," she said, adding that "it was a newly open kindergarten sponsored by the church."
3. Can you tell us the main point of the story?
4. "that's the man who did it," she said, pointing to me.
5. The robber pointed a gun at the bank clerk.
6. You will tell your friend that you are concerned bout him but you have to go to class.
7. Present at the meeting were leading members of the departments concerned.
8. This book deals with questions concerning Anti-Japanese War.
9. I will take my share of the expenses.,
10. He is the only person who shares my opinion.
11. I wonder if it's because I haven't been able to be outdoors for so long that I've grown so crazy about everything to do with nature.
12. You'll have to work like crazy to get this finished.
13. There is so much suffering in this world.
14. The
collapse of the
15. you will ignore the bell and go somewhere quiet to calm your friend down.
16. Please keep still while I take photos of you.
17. Please keep quiet when you're listening to your teacher.
18. All present were shocked by what the little girl went through when she was cheated and sold to the mountain village.
19. I
would not go to
20. It is the first time that she has talked with an English.
21. ---How come a simple meal like this costs so much?
a) ---We have included in your bill the cost of the cup you broke just now.
22. ---Will $200 cover the cost of the damage?
a) ---I'm afraid not. I need at least 100 more.
23. Actually, it was based more on German than present day English.
24. They presented a sum of money to the college in memory of their son.
25. The officer commanded his men to open fire.
26. He has good command of the French language.（掌握）
27. They recognized him as / to be a great leader.
28. Tom went off in one direction and Harry in another.
29. I give Mary full directions to enable her to find the house.（说明）
30. Generally speaking, when taken according to the directions, the drug has no side effect.
31. More than one official has served the people heart and soul.
32. He is more lazy than stupid.
33. The role that our army played in flood control is very important.
34. The question came up at the meeting whether we had enough money.
35. She came up with a new idea for increasing sales.
36. We should think of the problems that may come up in the future.
37. It came out that he had been stealing from his friends.
38. She wondered uneasily what use she would make of this opportunity.
39. You are really very kind. I'll never forget the favour you have done for me.
40. If better use is made of your spare time, you'll make great progress in it.
41. Imagine
that you live in
42. There are ten to choose from.
43. She did nothing but go away. / He has no choice but to lie down and lie down and sleep
44. We choose him as our monitor.
45. While shopping, people sometimes can't help being persuaded into buying something they don't really need.
46. He insisted on his correctness.
47. Jane insisted that she had done noting wrong and that she should be treated properly.
48. I insisted that a doctor be sent immediately.
49. The man insisted on finding a taxi for me even if I told him I lived nearby.
50. She gave me a determined look-the kind that said she wouldn't change her mind.
51. Determined to train his daughter in English, he put an ad like this in the paper, "Wanted, an English teacher for a ten-year-old girl."
52. He finally gave in to my view.
53. Jane tried to keep up a calm appearance, but her trembling voice gave her away.
54. Tom works very hard. His brother, on the contrary, doesn't do much at all.
55. The climate here doesn't agree with her.
56. Doctor don't agree about the medical effects of cold water swimming.（医生们就冷水浴的医疗作用持不同态度）
57. You are silly not to have locked your car.
58. They were badly shocked by the news.
59. The peasant boy lay on his back on the ground with his hands trembing.
60. He burst into tears at the sad news./ He burst out crying at the sad news.
61. In fifteen terrible seconds a large city lay in ruins.
62. He ruined his prospects by carelessness.
63. I judge it better to tell her the truth.
64. ---I apologize to you for my rudeness yesterday, Mary.
---Never mind, and I think little of it.
65. He got here earlier than usual.
66. The government is determind to put an end to terrorism.
67. He didn't go there by bike; he walked there, instead.
68. Instead
of seeing sights,
69. It is too long a journey to make in one day.
70. Her father advised her against marrying in haste.
2009年高考数学第二轮执点专题测试：不等式（含详解）
1. What he said led us to believe he was right.
2. Success lies in hard work while laziness can lead to failure.
3. All the leading newspapers reported the news.
4. Only if you put the sun there did the movements of the other planets in the sky make sense.
5. His answer was so confused that I could hardly make sense of.
6. The mother didn't know who to blame for the broken glass as it happened while she was out.
7. Mr. Smith, tired of the boring speech, started to read a novel.
8. So many thousands of terrified people died every time there was an earthquake outbreak.
9. He bought a computer the day he got his salary.
10. Not a single mistake did he make.
11. The flowers smelling sweet in the botanic garden attract the visitors to the beauty of nature.
12. How do you suggest we（should）go to Beijing for our holidays.
13. Puzzled by his problem I didn't know how to answer.
14. You can easily clarify any problems if you study British history.
15. He divided his time between reading and writing. （在…之间平分）
16.
17. As we joined the big crowd I got separated from my friends.
18. Come and see me whenever it is convenient to you.
19. I kept my reference near my desk for convenience.
20. Under the influence of my friends, I bought a coat, too.
21. However, these industrial cities do not have historical attractions of other places.
22. Attracted
by the beauty of nature, the girl form
23. These tickets are available on the day of issue only.
24. Complete the exercise without referring to a dictionary.
25. Nowadays many farmers want to break away from their lands and make a living in the cities.
26. In copying this paper, be careful not to leave out any words.
27. The manager is in charge of the factory; that is to say, the factory is in the charge of him.
28. There seems to be something wrong with her.
29. My first impression of him was favorable（讨人喜欢的）.
30. My father impressed value of hard work on me.
31. You reminded me of your father when you say that.
32. Many companies are suffering from a shortage of skilled staff.
33. The hospital aims to ease the sufferings of the dying.
34. He lacks confidence.
35. The trip was cancelled for lack of time.
36. The book is completely lacking in originality.
37. Though lacking money, his parents managed to send him to university.
38. I have been known to faint at the sight of blood.
39. Out of sight, out of mind.
40. He assisted us to establish a new company.
41. Two students assisted me with the experiment.
42. They came to our assistance soon after they received our phone.（以上用法同aid）
43. These pets require a lot of care and attention.
44. The house requires（needs/ wants）cleaning / to be cleaned.,
45. All passengers are required to show their tickets.
46. All of us required of him whether he had heard form Helen recently.（require sth.of sb.）
47. They are working against time to get people out of the rubble alive.
48. When his parents died he had to learn to stand on his own feet.
49. Make sure that no one finds out about this.
50. We must study English hard, or we are not good at English, are we?（并列句的反意疑问句就近一致）
51. We are good friends though he is ten years senior to me.
52. Please state your name, age and occupation below.
53. He occupies himself in collecting stamps.
54. In case it rains, the picnic will be put off to next week.
55. I shall stay at home all day in case there is news of my daughter.
56. Stop talking and concentrate on your work.
57. I decided to concentrate all my efforts on finding somewhere to live.
58. The police had to employ（use）force to break into the building.
59. He often accuses me of my carelessness.
60. The door opens and closes of itself.
61. We say a good reporter must have a "nose" for a story.
62. It was not until she took off her dark glasses that I realized she was a famous film star.
→Not until she took off her dark glasses did I realize she was a famous film star.
63. John was presented with his award at a ceremony which recognized（承认功绩等）the bravery of ten people who had saved the life of another.
64. Most students have been present at the speech by Mr. Smith but some naughty boys were absent form it.
65. It's so hot today, but the electric fan isn't working.
66. His father is electrical engineer.
67. It so happened that I had no money with me.（碰巧）
→ I happened to have no money with me.
→ As it happens, I had no money with me.
68. I finally managed to get the car working again.
69. When did you get knowing him?
70. The teacher got us to discuss the problems by ourselves.
71. You will get to understand the importance of learning English soon.
72. Look! That Mr. Smith gets drunk again.
73. You'd better get your hair cut. It's too long for a boy student.
2009届高三化学各地月考试题汇编：反应热（2）
1．（武汉一中新疆班09高三年级化学）（15分）根据下列事实完成下列反应方程式：
（1）AsH3是一种很强的还原剂，室温下，它能在空气中自燃，其氧化产物为As2O3，写出反应的化学方程式
（2）NaNO3与氢碘酸反应，放出NO气体并有单质碘生成
（3）白磷在一定条件下可被HClO3的水溶液氧化，生成磷的最高价态化合物，而氯元素被还原为最低价态 ______________________________________
（4）砷为氮族元素，其氧化物As2O3俗称砒霜，有剧毒可用马氏试砷法来检验，其原理是：将锌、盐酸和食物试样混合，若含有砒霜，则会产生砷化氢气体，这一反应的离子方程式是
（5）在火箭推进器中装有强还原剂肼（N2H4）和强氧化剂H2O2，当它们混合时，即产生大量氮气和水蒸气，并放出大量热。已知0.4 mol液态肼和足量液态H2O2反应,生成氮气和水蒸气,放出256.65 kJ的热量。写出此反应的热化学方程式： 。
答案
（1） 2AsH3+3O2= As2O3+3H2O （2）2NaNO3+8HI=2NO+3I2+2NaI+4H2O
（3）3P4+10 HClO3 +18H2O=12H3PO4+10HCl （4）6Zn+As2O3+12H+=6Zn2++2AsH3↑+3H2O
（5）N2H4（l）+2 H2O 2（l）= N2(g) + 4H2O(g); △H= -641.625 kJ.mol-1
2．(重庆北山中学高2009级08～09学年度上期期末) (14分)反应A(g)+B(g)
C(g) +D(g)过程中的能量变化如图所示，回答下列问题。
(1)该反应是____________________反应(填“吸热”“放热”)；
(2)当反应达到平衡时，升高温度，A的转化率______(填“增大”“减小”“不变”)，
原因是________________________________________________________________________________；
(3)反应体系中加入催化剂对反应热是否有影响?_______________，原因是_____________________________。
(4)在反应体系中加入催化剂，反应速率增大，E1和E2的变化是：E1_____，E2______(填“增大”“减小”“不变”)。
答案
．(14分) (1)放热。
(2)减小；该反应正反应为放热反应，升高温度使平衡向逆反应方向移动。
(3)不影响；催化剂不改变平衡的移动。
(4)减小、减小。
3．(重庆北山中学高2009级08～09学年度上期期末)工业上制备纯硅反应的热化学方程式如下： SiCl4(g)＋2H2(g)===Si(s)＋4HCl(g)；△H＝＋QkJ?mol－1(Q＞0)某温度、压强下，将一定量的反应物通入密闭容器进行以上的反应(此条件下为可逆反应)，下列叙述正确的是( D )
A．反应过程中，若增大压强能提高SiCl4的转化率
B．若反应开始时SiCl4为1mol，则达到平衡时，吸收热量为QkJ
C．反应至4min时，若HCl的浓度为0.12mol?L－1，则H2的反应速率为0.03mol/(L?min)
D．当反应吸收热量为0.025QkJ时，生成的HCl通入100mL1mol?L－1的NaOH恰好反应
4．(飞龙中学2009届理科复习班第四次理科综合 )（17分）现有A、B、C、D、E、F六种短周期元素，原子序数依次增大。已知A与D、C与E分别同主族，D、E、F同周期；A、B的最外层电子数之和与C的最外层电子数相等，A与C形成的化合物常温下均为液态，A分别与E、F形成的气体分子电子总数相等。
请回答下列问题：
(1)元素B在周期表中的位置是_____________________，元素D的原子结构示意图为_________________________。
(2)A、D、E 3种元素形成一种离子化合物，其水溶液呈碱性，试用离子方程式表示该溶液中存在的所有平衡______________________________________
________________________________________________________________。
(3)A
(4)在一定条件下，A、C的单质和A、C、D形成的离子化合物的水溶液可构成电池，该电池正极的电极反应式为_________________________________，负极的电极反应式为______________________________；该电池在放电过程中，电解质溶液的pH将___________(填“增大”、“减小”或“不变”)。
(5)化合物B
_________________________________________________________________。
答案
5．(绵中高2009级第五期第三次学月考试)已知一定温度和压强下，合成氨反应：N2（g）+3H2(g) 
2NH3(g)；△H=-92.0KJ?mol-1
将1mol N2和3mol H2充入一密闭容器中，保持恒温恒压，在催化剂存在时进行反应，达到平衡时，测得N2的转化率为20%。若在相同条件下，起始时在该容器中充入2mol NH3，反应达到平衡时的热量变化是（ C ）www.ks5u.com
A．吸收18.4KJ热量 B．放出18.4KJ热量
C．吸收73.6KJ热量 D．放出73.6KJ热量
6．(江宁高级中学08~09学年度第一学期高三年级12月月考三 校 联 考 )中学化学教材中有大量数据，下列为某同学对数据的利用情况，其中不正确的是( C )
A．用反应物、产物中键能数据可判断对应反应的反应热
B．用沸点数据推测将一些液体混合物用分镏的方法分离开来的可能性
C．用反应热数据的大小判断不同反应的反应速率的快慢
D．用卤素阴离子半径数据推断其还原性的强弱
7．(河南省郑州市一中2009届高三年级11月期中考 )下列关于热化学反应的描述中正确的是( B )
A．HCI和NaOH反应的中和热ΔH＝－57．3kJ／mol，则H2SO4和Ca(OH) 2反应的中
和热△H＝2×(－57．3)KJ／mol
B．CO(g)的燃烧热是283．0kJ／mol，则2CO2 (g)＝2CO(g)＋O2 (g)反应的
△H＝2×283．0kJ／molw.w.w.k.s.5.u.c.o.m
C．需要加热才能发生的反应一定是吸热反应
D．1mol甲烷燃烧生成气态水和二氧化碳所放出的热量是甲烷的燃烧热
8．(河南省实验中学高三年级2008―2009学年上期期中考试)红磷P(s)和Cl2(g)发生反应生成PCl3(g)和PCl5(g)。反应过程和能量关系如图所示(图中的△H表示生成1mol产物的数据)。
根据右图回答下列问题：
(1)原子最外层电子均达到8电子结构的分子是
（选填“PCl
(2)P和Cl2反应生成PCl3的热化学方程式
______ _。
(3) PCl5分解成PCl3和Cl2的热化学方程式__________________ _ 。
(4)PCl5与足量水充分反应，最终生成两种酸，其化学方程式是
________________ ___ __。
答案
.（1）PCl3
(2) P(s)＋Cl2(g)=== PCl3(g)；△H＝－306kJ?mol－1 （3分）
(3) PCl5(g)===PCl3(g)＋Cl2(g)；△H＝+93kJ?mol－1 （3分）
（4）PCl5＋4H2O===H3PO4＋5HCl。
w.w.w.k.s.5.u.c.o.m
9．(石家庄二中2008―2009学年度高三第一学期期中考试)（6分）铍是一种高效率的火箭燃料，铍在燃烧时能释放出巨大的能量：每千克铍完全燃烧放出的热量为627100kJ。
（1）写出铍燃烧的热化学方程式：
（2）写出氧化铍与盐酸的反应的离子方程式：
10．(石家庄二中2008―2009学年度高三第一学期期中考试)已知反应：①101kPa时,
②稀溶液中，H+（aq）+OH―（aq）=H2O（1）；△H=－57.3kJ/mol
③红磷的化学式为P，白磷的化学式为P4，已知
P4（s）+5O2（g）=P4O10（s）；△H=－3093.5kJ/mol
4P（s）+5O2（g）=P4O10（s）；△H=－2954.0kJ/mol
下列结论正确的是 （ B ）
A．由于红磷转化为白磷是放热反应，等质量的红磷能量比白磷低
B．碳的燃烧热大于110.5kJ/mol
C．稀硫酸与稀NaOH溶液反应的中和热△H=57.3kJ/mol
D．稀醋酸与稀NaOH溶液反应生成1mol水，放出57.3kJ热量
11．(自贡市高2009级高三理科综合能力测试“一模”)第29届奥运会已在北京举行,体操王子李宁凌空点火举世瞩目。2008年北京奥运会“祥云”火炬采用的是环保型燃料---丙烷（C3H8），悉尼奥运会火炬所用燃料为65%丁烷（C4H10）和35%丙烷，已知丙烷的燃烧热为：2221.5kJ/mol，下列有关说法正确的是( B )
A.丙烷的沸点比正丁烷高
B.奥运火炬燃烧主要是将化学能转变为热能和光能
C.丙烷、空气及铂片可组成燃料电池，在丙烷附近的铂极为电池的正极
D.丙烷燃烧的热化学方程式为：C3H8(g)+5O2(g)→3CO2(g)+4H2O(g)；△H=?2221.5kJ/mol
12. (重庆八中高2009届级高三周末检测 )下列说法中正确的是( A )
A．已知：2H2O(l)
= 2H2(g) + O2(g)；
H2O(l) = H2(g) +
O2(g)；
则
B．SO2通入硝酸钡溶液出现白色沉淀，该白色沉淀是BaSO3
C．因为常温下白磷可自燃，而氮气须在放电时才与氧气反应，所以非金属性：P> N
D．1 mol H2SO4与 1 mol Ba(OH)2反应生成 BaSO4沉淀时放出的热叫做中和热
13. (2008~2009学年度第一学期高三期中联考) (8分) (1)．1840年，俄国化学家盖斯（Hess）指出：“一个化学反应，不论是一步完成，还是分几步完成，其总的热效应是完全相同的。”这就是著名的“盖斯定理”。现已知在101KPa下CH4、H2、C（固）的燃烧热分别为890.83KJ ?mol-1、285.83 KJ?mol-1和393.51 KJ?mol-1,则反应C(s)+2H2(g)=CH4(g)的反应热△H＝ ▲ ，根据以上信息，你认为“盖斯定理”在我们确定一些化学反应的反应热时有何重要意义 ▲ 。
(2)．氯化银在水中存在沉淀溶解平衡：
答案
（1）-74.34 KJ ?mol-1
对于一些很难用实验方法直接测定热量的化学反应的反应热可以用“盖斯定理”间接测定
（2）①>②>④>③ 6×10-10w.w.w.k.s.5.u.c.o.m
14．(09届南阳三仓高三化学联考)下列叙述中，不正确的是(D )
A．在相同条件下，焓变小于0而熵变大于0的反应肯定能自发进行
B．升高温度会加快化学反应速率，其原因是增加了活化分子的百分数
C．青石棉的化学式为Na2Fe5Si8O22(OH)2，用氧化物的形式可表示为：
Na2O?3FeO?Fe2O3?8SiO2?H2O
D．某离子被沉淀完全时，该离子在溶液中的浓度即为0
15．(09届南阳三仓高三化学联考) (14分)⑴北京奥运会“祥云”火炬燃料是丙烷(C3H8)，亚特兰大奥运会火炬燃料是丙烯(C3H6)。
①丙烷脱氢可得丙烯。
已知：C3H8(g)→CH4(g)＋HC≡CH(g)＋H2(g) △H1＝156.6 kJ?mol-1
CH3CH＝CH2(g)→CH4(g)＋HC≡CH(g) △H2＝32.4 kJ?mol-1
则相同条件下，反应C3H8(g)→CH3CH＝CH2 (g)+H2(g)的△H＝ kJ?mol-1。
②以丙烷为燃料制作新型燃料电池，电池的正极通入O2和CO2，负极通入丙烷，电解质是熔融碳酸盐。电池反应总方程式为
；放电时，CO32－移
向电池的 （填“正”或“负”）极。
⑵反应A(g)+B(g)
C(g)+D(g)过程中的能量变化如图所示，回答下列问题。
①该反应是_______________反应（填“吸热”“放热”）；
②在反应体系中加入催化剂，反应速率增大，E1和E2的变化是：E1_________，E2________（填“增大”“减小”“不变”）；
③反应体系中加入催化剂对反应热是否有影响？_____________，原因是______________
______________________________________________________________________ ____。
答案
．（14分）⑴ ①124.2（2分） ②C3H8＋5O2＝3CO2＋4H2O（2分） 负 （2分）
⑵ ①放热 （2分） ②减小 （2分） 减小（2分）
③不影响（1分） 催化剂不改变平衡的移动 （1分）
16．(湖南汝城二中09高三第四次月考 )（6分）火箭推进器中盛有强还原剂液态肼（N2H4）和强氧化剂液态双氧水，它们混合反应，生成氮气和水蒸气。已知混合物共1摩尔且恰好完全反应时放出256.6kJ的热量。
（1）该反应的热化学方程式为 。
（2）又已知H2O（l）=H2O（g）；ΔH=+44kJ/mol。则
（3）此反应除释放大量热和快速产生大量气体外，还有一个很大的优点是 。
元素编号
元素特征信息
A
其单质是密度最小的物质
B
阴离子带有两个单位的负电荷，单质是空气的主要成分之一
C
其阳离子与B的阴离子具有相同的电子层结构，且核电荷数与B相差3
D
与C同周期，且最外层电子是C的3倍
E
与D同周期，原子半径在该周期中最小
答案
、（6分）（1）N2H4(l)+2H2O(l)==N2(g)+4H2O(g)；H=-769.8KJ/mol
（2） 472.9KJ
（3） 产物为水和氮气，不会污染环境 （每空2分）
17．(郑州市101中学2009届高三9月月考试卷)下列有关热化学方程式的叙述正确的是( C )
A．已知2H2(g)+O2(g)=== 2H2O(g)；△H=-483.6kJ/mol，则H2的燃烧热为241.8kJ/mol
B．已知C（石墨，s）
C（金刚石，s）；△H>0，则金刚石比石墨稳定
C．含
中和热的热化学方程式为：NaOH（ag）+HCl（ag）NaCl（ag）+H2O（l）；△H=-57.4kJ/mol
D．已知
18．(郑州市101中学2009届高三9月月考试卷) (7分)在化学反应中，只有极少数能量
比平均能量高得多的反应物分子发生碰撞时
才可能发生化学反应，这些分子被称为活化
分子。使普通分子变成活化分子所需提供的
最低限度的能量叫活化能，其单位通常用
kJ?mol-1表示。请认真观察右图，然后回答问题。
（1）图中所示反应是________(填“吸热”或“放热”)反应，该反应_______(填“需要”或“不需要”)加热，该反应的△H =________(用含E1、E2的代数式表示）。
（2）已知热化学方程式：H2(g)＋1/2O2(g) = H2O(g) △H = - 241.8 kJ?mol-1，该反应的活化能为167.2 kJ?mol-1，则其逆反应的活化能为____________________。
（3）对于同一反应，图中虚线（Ⅱ）与实线（Ⅰ）相比，活化能大大降低，活化分子百分数增多，反应速率加快，你认为最可能的原因是_________________________。
答案
（1）放热； 需要； -(E1 - E2) kJ?mol-1
（2）409 kJ?mol-1； （3）使用了催化剂。
19、(浙江省富阳新中2008（上）高三期中考试)工业上制备纯硅反应的热化学方程式如下：
SiCl4（g）+2H2（g）
Si（s）+4HCl（g）;
△H=+QKJ
/mol（Q＞0），某温度、压强下，
将一定量反应物通入密闭容器进行以上反应，下列叙述正确的是 ( C )
A、反应过程中，若压缩容器体积，增大压强能提高SiCl4的转化率
B、若反应开始时SiCl4为1 mol,则达平衡时，吸收热量为Q kJ
C、当反应吸收热量为0.025Q kJ时，生成的HCl通入100 mL 1 mol/L的NaOH溶液恰好反应
D、反应至4 min时，若HCl浓度为0.12 mol/L,则H2的反应速率为0.03 mol/（L?min）
20、(2009年高考理综12月化学考试题)、最近罗马大学Fulvio Cacace等人获得了极具理论研究意义的N4分子,N4分子结构如右图所示（与白磷P4相似）。已知断裂1mol N―N吸收167kJ热量,生成1mol 
放出942kJ热量。由此判断下列说法正确的是( D
)
A．N4属于一种新型的化合物 B．N4与N2互为同分异构体
C．N4沸点比P4（白磷）高 D．1molN4气体转变为N2将放出882kJ热量
21. (通辽一中08-09学年度高三第一学期第一次考试) (4分) ①甲硅烷(SiH4)是一种无色气体，遇到空气能发生爆炸性自燃，生成SiO2和水，已知室温下
②13gC2H2(g)完全燃烧生成CO2和H2O(l)时放出650kJ热量，该反应燃烧热的化学方程式为________________________________________________。
答案
. (4分)① SiH4(g)+2O2(g)==SiO2(s)+2H2O(1) △H==－1427.2kJ／mol
②C2H2(g)+2.5O2(g)＝2CO2(g)+ H2O(1)；△H＝－1300kJ／mol
22. (通辽一中08-09学年度高三第一学期第一次考试) 1gH2(g)燃烧生成液态水放出
142．9kJ的热量，表示该反应的热化学方程式正确的是
A．2H2(g)+O2(g)＝2H2O(1)；△H=－142．9kJ／MOl
B．2H2(g)+O2(g)＝2H2O(1)；△H=－571.6kJ／mol
C．2H2+O2＝2H2O；△H=－571．6kJ／mol
D．H2(g)+
O2(g)=H2O(g); △H＝－285．8kJ／mol
23．(湖北省天门中学08-09学年高三年级（实验班）十一月考试卷)将V1 mL 1.0 mol/L HCl溶液和V2 mL未知浓度的NaOH溶液混合均匀后测量并记录溶液温度，实验结果如图所示(实验中始终保持V1＋V2＝50 mL)。下列叙述正确的是（ B ）
A．做该实验时环境温度为
C．NaOH溶液的浓度约是1.00 mol/L D．该实验表明有水生成的反应都是放热反应
24．(2008年秋季湖北省部分重点中学期中联考)根据热化学方程式：S（s）+O
2（g）====SO
2（g）；△H=
kJ?mol
（
297．2）分析，下列说法不正确的是(B )
A．S （s）在O2（g）中燃烧的反应是放热反应w.w.w.k.s.5.u.c.o.m
B．S（g）+O
2（g）====SO
2（g）；△H=
kJ?mol，则
C．
D．1 mol SO 2（g）所具有的能量低于1 mol S（s）与1 mol O 2（g）所具有的能量之和
25、( 广东天河中学09高三模拟)下列表述中正确的是( A )
A．1mol NaOH分别和1mol CH3COOH、1molHNO3反应，后者比前者放出的热量多
B．由C（石墨）→C（金刚石）△H=+119kJ?mol―1可知，金刚石比石墨稳定
C．在AgNO3溶液中加入过量的稀盐酸后，溶液中不存在Ag＋
D． 任何能使熵值增大的过程都能自发进行
26、( 广东天河中学09高三模拟)（12分）工业制硫酸生产流程如下图：
|
2 SO3(g) ;△H= －Q kJ/mol（Q＞0），则下列说法正确的是 ( A
)
= -989.2/kJ?mol-1，则X的值为( B )
FeO(s)+CO(g)；△H=Q1的平衡常数为K1，反应②Fe(s)+H2O(g)
A．缩小容器体积 B．降低温度 C．使用合适的催化剂 
)＞c(HCO
)＞c(OH-)＞c(H+)（2分）
H2S↑＋2OH－
醋酸溶液加大量水稀释后，溶液的pH增大
H++ SO42－，又知0.1mol?L－1NaH SO4溶液的pH = 2。则下列说法不正确的是
( B )
NH3↑+H2O
HClO + OH－是酸碱反应
B．
C．
D．
减小
，溶液的漂白性增强
)在水中的电离方程式是：
回答下列问题：
溶液中氢离子的物质的量浓度应 
(填“>”、“<”或“=”)，理由是
。
溶液显 (填“酸性”、“中性”或“碱性”)。理由是(用离子方程式表示)
。NaHA液溶中离子浓度的大小顺序是：
。 
溶液能否发生反应? ，能反应的写出离子方程式
部分电离且
，抑制了
; (2分) 
(2分) (不完全正确不给分)
(2分)
H++A2－。现有下列四种溶液：
A．溶液②中存在水解平衡：HA―+H2O H
溶液呈酸性、
溶液呈碱性。现有浓度均为0.1mol?
的
)＞c(
)＞c(
)＞c(
)＞c(
)
)＝c(