配套习题- 化学平衡状态的判断（一）——正逆速率相等则平衡 -【青果学院】

1/5单选题

难度：

1.在一定温度下，可逆反应：A₂（气）+B₂（气）

2AB（气），达到平衡的标志是

A	容器的总压强不随时间而变化
B	单位时间内有nmolA₂生成的同时有nmolB₂生成
C	单位时间内有nmolB₂发生反应的同时有nmolAB分解
D	单位时间内生成nmolA₂同时就有2nmolAB生成

正确答案：RA==

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

2/5单选题

难度：

2.在一定温度下可逆反应H₂（g）+I₂（g）

2HI（g）达到平衡的标志是

A	有1molH-H键断裂，同时有1molI-I键形成
B	容器内压强不再随时间而变化
C	单位时间内反应掉nmol I₂同时生成2n mol HI
D	H₂、I₂、HI的浓度之比为1：1：2

正确答案：QQ==

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

3/5单选题

难度：

3.可逆反应：2A（气）+3B（气）

3C（气），一定条件下，在一密闭、恒容的容器中，使一定量A和B气体反应，下列叙述能用来判断达到平衡状态的是

A	各物质的浓度之比为c（A）：c（B）：c（C）=2：3：3
B	气体的总体积是反应开始时的
C	混合气体的密度不变
D	单位时间内，若消耗了a molA物质，同时也消耗了1.5a mol的C物质

正确答案：RA==

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

4/5单选题

难度：

4.可逆反应N₂+3H₂2NH₃的正、逆反应速率可用各反应物或生成物浓度的变化来表示. 下列关系中能说明反应已达到平衡状态的是

A	3v_正（N₂）=v_正（H₂）
B	v_正（N₂）=v_正（NH₃）
C	v_正（H₂）=3v_逆（NH₃）
D	3v_正（N₂）=v_逆（H₂）

正确答案：RA==

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

5/5单选题

难度：

5.可逆反应2SO₂+O₂2SO₃达到平衡的标志是
①消耗2molSO₂的同时生成2molSO₃
②SO₂、O₂与SO₃的物质的量之比为2：1：2
③反应混合物中，SO₃的质量分数不再改变.

A	①②
B	①③
C	只有③
D	只有①

正确答案：Qw==

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