配套习题- 量（浓度、质量分数、转化率等）-时间图像 -【青果学院】

1/5单选题

难度：

1.一定条件下，下列反应中水蒸气含量随反应时间的变化趋势符合题图的是

A	CO₂(g)＋2NH₃(g) CO(NH₂)₂(s)＋H₂O(g)；ΔH<0
B	CO₂(g)＋H₂(g) CO(g)＋H₂O(g)；ΔH>0
C	CH₃CH₂OH(g) CH₂=CH₂(g)＋H₂O(g)；ΔH>0
D	2C₆H₅CH₂CH₃(g)＋O₂(g) 2C₆H₅CH=CH₂(g)＋2H₂O(g)；ΔH<0

正确答案：QQ==

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2/5单选题

难度：

2.T ℃时在2 L密闭容器中使X(g)与Y(g)发生反应生成Z(g)。反应过程中X、Y、Z的浓度变化如图 (1)所示；若保持其他条件不变，温度分别为T₁和T₂时，Y的体积分数与时间的关系如图 (2)所示。则下列结论正确的是</br>

A	反应进行的前3 min内，用X表示的反应速率v(X)＝0.3 mol·(L·min)^－¹
B	容器中发生的反应可表示为：3X(g)＋Y(g) 2Z(g)
C	保持其他条件不变，升高温度，反应的化学平衡常数K减小
D	若改变反应条件，使反应进程如图 (3)所示，则改变的条件是增大压强

正确答案：Qg==

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

3/5单选题

难度：

3.25 ℃时，在含有Pb²^＋、Sn²^＋的某溶液中，加入过量金属锡(Sn)，发生反应：Sn(s)＋Pb²^＋(aq)

Sn²^＋(aq)＋Pb(s)，体系中c(Pb²^＋)和c(Sn²^＋)变化关系如图所示。下列判断正确的是

A	往平衡体系中加入金属铅后，c(Pb²^＋)增大
B	往平衡体系中加入少量Sn(NO₃)₂固体后，c(Pb²^＋)变小
C	升高温度，平衡体系中c(Pb²^＋)增大，说明该反应ΔH>0
D	25 ℃时，该反应的平衡常数K＝2.2

正确答案：RA==

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

4/5单选题

难度：

4.已知反应：2CH₃COCH₃(l)

CH₃COCH₂COH(CH₃)₂(l)。取等量CH₃COCH₃，分别在0 ℃和20 ℃下，测得其转化分数随时间变化的关系曲线(Y－t)如图所示。下列说法正确的是

A	b代表0 ℃下CH₃COCH₃的Y－t曲线
B	反应进行到20 min末，CH₃COCH₃的>1
C	升高温度可缩短反应达平衡的时间并能提高平衡转化率
D	从Y＝0到Y＝0.113，CH₃COCH₂COH(CH₃)₂的＝1

正确答案：RA==

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

5/5单选题

难度：

5.T℃时，在2L的密闭容器中，A气体与B气体发生可逆反应生成C气体，反应过程中A、B、C物质的量变化如图(Ⅰ)所示．若保持其它条件不变，温度分别为T1和T2时，B的物质的量分数与时间关系如图(Ⅱ)所示．下列叙述正确的是

A	2min内A的化学反应速率为0.1mol/L
B	在反应达平衡时，保持其他条件不变，增大压强，正逆反应速率都增大，且平衡向逆反应方向移动
C	在反应达平衡时，其它条件不变，升高温度，正逆反应速率都增大，且A的转化率增大
D	在T℃时，若A的浓度减少了1mol/L，则B的浓度会减少3mol/L，C的浓度会增加2mol/L

正确答案：RA==

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