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A.
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B.
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C.
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A.
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B.
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C.
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A.
不变
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B.
愈来愈小
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C.
愈来愈大
以下哪种措施可增大气体在固体表面的单位界面吸附量( )。
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A.
增大气体压力
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B.
升高温度
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C.
降低气体压力
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A.
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B.
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C.
在以下三种电极中,电极反应标准电势等于零的是( )。

A.
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B.
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C.
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A.
>
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B.
=
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C.
<
当电流通过电解质溶液时,电极反应的反应进度x 与通过的电量Q成正比,与反应电荷数z(电极反应的电子数变化,取绝对值) ( )。

A.
成反比
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B.
成正比
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C.
无关
计算获得的电池反应电势为负值时,意味着此电池反应是( )。
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A.
正向进行
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B.
逆向进行
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C.
不可能进行
当温度时,
的值( )1。
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A.
小于
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B.
等于
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C.
大于
对于零级反应,随着反应的进行,反应物A的消耗速率( )。
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A.
不断增大
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B.
不断减小
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C.
不变
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A.
反应物与产物分子间的计量关系
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B.
它是一个双分子反应
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C.
它是一个二级反应
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A.
3,2,10
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B.
3,3,9
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C.
3,3,6
为零级反应,
的初始浓度为
,半衰期为20 min,则当反应40min时,A的浓度为( )。
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A.
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B.
0
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C.
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A.
2.57×10-9
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B.
2.57×10-6
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C.
2.57×10-3
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A.
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B.
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C.
已知25℃时液体的表面张力,液体中半径为
的球形气泡内的气相压力与外部液相压力的差值等于( )N。
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A.
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B.
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C.
在物理化学分析方法中,以物理量Y代替浓度变化,正确的式子是( )。
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A.
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B.
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C.
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A.
0.481
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B.
0.581
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C.
0.381
同温下,平面液体、凸面液体、凹面液体的饱和蒸汽压的关系为( )。

A.
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B.
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C.
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A.
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B.
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C.
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A.
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B.
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C.

A.
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B.
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C.
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A.
②
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B.
③
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C.
①
25℃时,已知某原电池反应的得失电子数z =1,该反应的,
。当反应得失电子数z =2时,该电池的电池反应标准电势及温度系数分别为( )。

A.
0.5V,
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B.
0.5V,
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C.
1.0V,
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A.
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B.
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C.
物理吸附的吸附焓( )化学吸附的吸附焓。

A.
小于
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B.
等于
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C.
大于
关于浓差电池,以下说法不正确的是( )。

A.
浓差电池包括电极浓差电池和溶液浓差电池
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B.
溶液浓差电池一定具有液接电势
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C.
浓差电池是物质从高浓度区向低浓度区转移的电池

A.
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B.
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C.
在不同能级中,能级间隔相等的是()。

A.
平动能级
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B.
转动能级
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C.
振动能级
原电池短路时,下列说法正确的是( )。
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A.
化学能转变为电能和热能
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B.
放出或吸收的热
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C.
放出或吸收的热为
某反应物反应掉 7/8 所需的时间恰好是它反应掉 1/2 所需时间的 3 倍,则该反应的级数是( )。

A.
二级反应
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B.
零级反应
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C.
一级反应
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A.
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B.
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C.
实验测定原电池电动势时,采用抵消法的目的是为了( )。
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A.
方便测量
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B.
保持原电池可逆放电的条件
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C.
消除电极上的副反应
晶体中的原子、分子或离子属于()。
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A.
独立的离域子系统
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B.
定域子系统
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C.
离域的相倚子系统
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A.
0.10352
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B.
0.01294
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C.
0.05176
关于界面张力的说法不正确的是( )。
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A.
界面张力是恒熵恒容下,单位表面积中的分子所具有的焓
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B.
界面张力是界面中单位长度的收缩张力
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C.
界面张力等于增加单位界面面积时系统必须得到的可逆界面功
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A.
6.00
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B.
3.00
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C.
1.00
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A.
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B.
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C.
液体能完全润湿毛细管,忽略气体的密度,则毛细管的上升高度等于( )。
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A.
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B.
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C.
- 第2部分
- 总题数: 5
恒温时当电解质水溶液浓度增大时,下列哪种性质减小( )。
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第一类电解质的离子电迁移率
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在稀溶液范围内的溶液电导率
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溶液摩尔电导率
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在稀溶液范围内的离子平均活度因子
关于子配分函数,以下正确的是( )。
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子配分函数
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当体积不变,温度增大2倍,NO气体的转动配分函数增大2倍
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当温度不变,体积增大2倍,NO气体的平动配分函数增大2倍
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当体积不变,温度增大2倍,NO气体的振动配分函数增大2倍
能级的能量越大,则( )。
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振动能级的简并度不确定
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振动能级的简并度越小
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转动能级的简并度越大
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振动能级的简并度不变
关于浓差电池,下列说法正确的是( )。
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当a1 <a2时,的E大于0
</a2时,
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当时,
的E大于0
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浓差电池包括电极浓差电池溶液浓差电池
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当p1 > p2时,的电池反应电势E大于0
对峙反应,当温度一定时由纯A开始,下列说法正确的是( )。
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起始时A的消耗速率最快
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反应进行的净速率是正逆反应速率之差
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的值是恒定的
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达到平衡时正逆反应的速率系数相等
- 第3部分
- 总题数: 10
多相系统有三种类型的相界面。( )
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过热液体、过饱和蒸气、过冷液体、过饱和溶液产生的原因都可由开尔文方程进行分析。( )
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对于定域子系统和离域子系统,热力学函数U,H及S与子配分函数的关系式都相同。( )
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某反应,当反应物反应掉 5/9 所需时间是它反应掉 1/3 所需时间的 2 倍,则该反应是一级反应。
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与
的电极反应电势相等,电极反应标准电势不相等。( )
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吉布斯界面相是无厚度、无体积的平面界面相,采用吉布斯模型后,两个体相的强度性质均略微发生变化。( )
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当电池的电动势E=0时,意味着正极与负极的电极电势相等
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强电解质溶液当浓度很稀时,与
近似表现出线性关系。( )
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温度一定时,半衰期是个常数,则该反应为一级反应。( )
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A.
0.98
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B.
1
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C.
1.02
的反应机理为:
(慢反应),
(快反应),则中间物的
( )0。
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A.
大于
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B.
等于
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C.
小于
以下哪种措施可增大气体在固体表面的单位界面吸附量( )。
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A.
升高温度
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B.
增大气体压力
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C.
降低气体压力
温度为300K时,将表面活性剂添加至纯水中后,表面张力减小了,则表面活性剂的界面吸附量
等于( )
。
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A.
0.100
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B.
0.066
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C.
0.033
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A.
>
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B.
=
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C.
<

A.
2
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B.
1
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C.
3
1mol理想气体,在298K时,已知分子的配分函数q = 1.6,假定ε0= 0,g0= 1,则处于基态的分子数为()。
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A.
6.02×1023mol-1
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B.
8.29×1023mol-1
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C.
3.76×1023mol-1
不同能级的简并度均等于1的是()。
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A.
平动能级
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B.
振动能级
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C.
转动能级
有七个独立的可区别的粒子,分布在简并度为1、3和2的ε0, ε1, ε2三个能级中,数目分别为3个、3个和1个子,这一分布拥有的微观状态数等于()。
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A.
7560
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B.
8560
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C.
6560
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A.
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B.
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C.
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A.
成正比
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B.
成反比
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C.
无关
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A.
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B.
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C.
双原子分子振动能的最低能级等于()。
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A.
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B.
0
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C.
298K时,苯蒸气在石墨上的吸附符合Langmuir吸附等温式,在苯气体的压力为40Pa时,表面覆盖率θ=0.05,当θ=0.5时,苯气体的压力是( )。
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A.
400Pa
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B.
1000Pa
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C.
760Pa
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A.
0.0045
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B.
0.003
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C.
0.001
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A.
Q> 0
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B.
Q< 0
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C.
Q = 0
下列说法错误的是( )。
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A.
可用NH4NO3或KCl作为盐桥中使用的电解质
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B.
电池中无需使用盐桥
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C.
使用盐桥能消除液接电势
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A.
p2
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B.
1/p
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C.
p
电解质溶液的导电的原因是( )。
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A.
仅需离子迁移
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B.
离子的迁移与电极反应
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C.
仅需电极反应
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A.
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B.
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C.
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A.
3
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B.
2
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C.
4
不能用测定电解质溶液所得的电导来计算出的物理量是( )。
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A.
弱电解质电离度
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B.
离子迁移数
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C.
难溶盐溶解度
若平行反应中的两个反应具有相同的反应级数,且
。反应开始时系统中只有反应物A,当产物B的浓度为
,则产物C的浓度为( )
。
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A.
1.5
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B.
3
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C.
6
某一反应物的平衡转化率为25%,若在催化剂作用下,反应速率增加20倍,则平衡转化率( )。
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A.
小于25%
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B.
大于25%
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C.
等于25%
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A.
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B.
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C.
下列电解质溶液,平均活度因子处于中间的( )。
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A.
0.01 mol·kg-1 LaCl3
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B.
0.01 mol·kg-1 CaCl2
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C.
0.001 mol·kg-1 KCl
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A.
x/y
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B.
(x–y)/x
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C.
(y–x)/y
离子的摩尔电导率与其价态有关系( )。
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A.
错误
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B.
正确
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C.
不确定
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A.
1.20
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B.
0.60
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C.
1.73
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A.
1/4
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B.
1/2
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C.
1/3
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A.
6.00
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B.
3.00
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C.
1.00
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A.
不润湿
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B.
铺展润湿
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C.
粘附润湿
维持微小液滴的半径不变,减小液滴内外压差的措施是( )。
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A.
加盐
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B.
降低液体温度
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C.
加表面活性剂
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A.
②
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B.
③
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C.
①
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A.
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B.
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C.
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A.
③
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B.
①
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C.
②
某平行反应含有主、副两个反应,主反应的产物为Y,活化能为E1;副反应的产物为Z,活化能为E2,且E1>E2。则升高温度( )。

A.
对生成Z有利
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B.
无影响
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C.
对生成Y有利
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A.
等于
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B.
大于
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C.
小于
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A.

B.
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C.
恒温恒压下已达平衡的反应,放在电池中进行,则该电池反应的电势等于( )。

A.
0
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B.
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C.
- 第2部分
- 总题数: 5
关于子配分函数,以下不正确的是( )。
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各种运动形式的子配分函数都无量纲

分子质量越大,转动惯量越小,对称数越小,子配分函数就越大。

子配分函数是一个粒子所有可能状态的简并度和玻耳兹曼因子之和
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子配分函数是一个粒子所有可能状态的玻耳兹曼因子之和
关于表面活性剂,下列说法正确的是( )。
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表面活性剂可降低不易溶于水的物质在水中的溶解度
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表面活性剂可在溶液表面定向排列
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表面活性剂可改变固体表面的润湿性能
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表面活性剂可显著增大溶液的表面张力
能响应Cl-活度的电极是( )。

电极
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电极
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玻璃电极
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电极
实验发现,HAc溶液的随浓度的增加而下降,其原因是( )。
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单位体积的离子数目增大
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解离度的减小
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离子间相互作用的增强
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离子间相互作用变弱
已知原电池反应可逆进行时对外放出的热量等于10kJ,标准摩尔反应焓为-200kJ,下列说法正确的是( )。
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若使反应逆向进行,理论上输入的电功至少为190KJ
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理论上对外输出的电功至多200kJ
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理论上对外输出的电功至少190kJ
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理论上对外输出的电功至多190kJ
- 第3部分
- 总题数: 10
电解质作为整体的活度大于未解离电解质的活度
。( )
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离子间的静电吸引力导致电解质溶液的性质偏离理想稀溶液的性质。( )
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铺展必润湿,润湿并非一定铺展。( )
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电解池中的电化学反应在可逆条件下消耗最大电功。( )
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在25℃下,与100kPa的大气中,当某溶液形成半径为r的液滴时,液滴内的液体压力为150kPa。若在同温、同压的空气中,将该溶液吹成一个半径为r气泡时,则该气泡内气体的压力为200kPa。
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基元反应的级数一定是整数
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MB分布公式适用于独立定域子系统的任何热运动形式的能级。( )
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计算原电池中负极的电极反应电势时,应是氧化方向的电极反应电势。( )
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无机盐在水溶液的界面上发生负吸附作用,表面活性剂发生正吸附作用。( )
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气体电极、氧化–还原电极及甘汞电极均借助惰性金属铂来输送电子。( )
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