配套习题- 化学平衡中的三段式法计算 -【青果学院】

1/5单选题

难度：

1.在一定温度下，反应

H₂（g）+

X₂（g）

HX（g）的平衡常数为10. 若将1.0mol的HX（g）通入体积为1.0L的密闭容器中，在该温度时HX（g）的最大分解率接近于

A	5%
B	17%
C	25%
D	33%

正确答案：Qg==

55Sx5LiA5a6a5rip5bqm5LiL77yM5Y+N5bqUPGltZyB3aWR0aD0xNyBoZWlnaHQ9NDMgc3JjPSJodHRwczovL3AyLnFpbmdndW8uY29tL0cxL00wMC82RS80QS9yQkFDSjFWQVZEX3doNllwQUFBQlZPM3BPZE0xODAucG5nIj5IPHN1Yj4yPC9zdWI+77yIZ++8iSs8aW1nIHdpZHRoPTE3IGhlaWdodD00MyBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzZFLzRBL3JCQUNKMVZBVkRfd2g2WXBBQUFCVk8zcE9kTTE4MC5wbmciPlg8c3ViPjI8L3N1Yj7vvIhn77yJPGltZyB3aWR0aD00NCBoZWlnaHQ9Mjkgc3JjPSJodHRwczovL3AyLnFpbmdndW8uY29tL0cxL00wMC9GQS82RS9yQkFDRkZWQVZELUR4ZmNZQUFBQkUzYVhSNEUwNzEucG5nIj5IWO+8iGfvvInnmoTlubPooaHluLjmlbDkuLoxMO+8jDxicj7liJnnm7jlkIzmnaHku7bkuItIWOWIhuino+eahOWMluWtpuWPjeW6lOeahOW5s+ihoeW4uOaVsOS4ujxpbWcgd2lkdGg9MjMgaGVpZ2h0PTQzIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvQTMvODUvckJBQ0UxVkFWRC1UZ0htcEFBQUJVZ3Iwd3NFNzIyLnBuZyI+77yM6K6+SFjliIbop6PnmoTnianotKjnmoTph4/kuLo8aT54PC9pPu+8jOWImTo8YnI+PGltZyB3aWR0aD0yOTQgaGVpZ2h0PTE1NiBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzZFLzE2L3JCQUNKbFZBVkRfeEd3S1ZBQUFQUHpKY0tzYzkwMS5wbmciPjxicj7mlYXlubPooaHluLjmlbA8aW1nIHdpZHRoPTEzMSBoZWlnaHQ9NjUgc3JjPSJodHRwczovL3AyLnFpbmdndW8uY29tL0cxL00wMC9GQS82RS9yQkFDRkZWQVZEX3c1ejIzQUFBRVB6WkdETUk4OTcucG5nIj48aW1nIHdpZHRoPTM1IGhlaWdodD00MyBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzZFLzE2L3JCQUNKbFZBVkQtUlI0OTdBQUFCYkdNaXlIYzc1Ni5wbmciPjxicj7op6Plvpc8aT54PC9pPj0wLjE3bW9s77yMPGJyPuivpea4qeW6puaXtkhY77yIZ++8ieeahOacgOWkp+WIhuino+eOh+S4ujxpbWcgd2lkdGg9MTU2IGhlaWdodD00MyBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzZFLzRBL3JCQUNKMVZBVkRfRERNc2hBQUFFRjdUd1N4azU5Ny5wbmciPjxicj7mlYXpgIlCLiA=

2/5单选题

难度：

2.在一定条件下，将1molCO和2mol水蒸气混合后发生如下变化：CO（g）+H₂O（g）

O₂（g）+H₂（g），若反应达平衡时测得CO转化率为40%，则该条件下该反应的平衡常数为

A	0.25
B	0.17
C	0.44
D	1.0

正确答案：Qg==

5bmz6KGh5pe25rWL5b6XQ0/ovazljJbnjofkuLo0MCXvvIzmlYXlj4LliqDlj43lupTnmoRDT+eahOeJqei0qOeahOmHj+S4ujFtb2zDlzQwJT0wLjRtb2zvvIzliJnvvJo8YnI+PGltZyB3aWR0aD0zNDIgaGVpZ2h0PTEwNSBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzZFLzE2L3JCQUNKbFZBVkVyUVNmOEVBQUFPbngyWlNqbzY3Ny5wbmciPjxicj7mlYXor6XmuKnluqbkuIvlubPooaHluLjmlbA8aW1nIHdpZHRoPTExOCBoZWlnaHQ9NDMgc3JjPSJodHRwczovL3AyLnFpbmdndW8uY29tL0cxL00wMC9GQS82RS9yQkFDRkZWQVZFckM4b3ZFQUFBRDRIQ2Q5blE4ODgucG5nIj48aW1nIHdpZHRoPTczIGhlaWdodD00MyBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzZFLzE2L3JCQUNKbFZBVkVxVGROLVBBQUFDdUZCYzd5WTI0OC5wbmciPj0wLjE377yMPGJyPuaVhemAiUIuIA==

3/5单选题

难度：

3.在一定温度下，反应H₂（g）+X₂（g）

2HX（g）的平衡常数为100，若将1.0mol的HX（g）通入体积为1.0L的密闭容器中，在该温度时HX（g）的最大分解率接近于

A	17%
B	5%
C	25%
D	33%

正确答案：QQ==

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

4/5单选题

难度：

4.已知反应2NH₃N₂+3H₂，在某温度下的平衡常数为0.25，那么，在此条件下，氨的合成反应

N₂+

H₂NH₃的平衡常数为

A	4
B	2
C	1
D	0.5

正确答案：Qg==

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

5/5单选题

难度：

5.在一定体积的密闭容器中，进行如下化学反应：CO₂（g）+H₂（g）

CO（g）+H₂O（g），其化学平衡常数K和温度t的关系如下表：则下列说法正确的是（　　）

T/℃	700	800	830	1000	1200
K	0.6	0.9	1.0	1.7	2.6

A	该反应的焓变为△H＜0
B	830℃时，容器中的反应已达到平衡. 在其他条件不变的情况下，扩大容器的体积. 平衡向逆反应方向移动
C	若1200℃时，某时刻体系中CO₂、H₂、CO、H₂O的浓度分别为2mol•L^-1、2mol•L^-1、4mol•L^-1、4mol•L^-1，则此时v_逆＜v_正
D	若830℃时，向容器中充入1molCO、5molH₂O，反应达到平衡后，CO转化率为83.3%

正确答案：RA==

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