配套习题- 催化剂对反应速率的影响 -【青果学院】

1/5单选题

难度：

1.下列关于催化剂的说法正确的是

A	使用催化剂可以增大正反应速率，减小逆反应速率
B	使用催化剂可以使化学平衡向正反应方向移动
C	使用催化剂可以降低反应的活化能
D	使用催化剂可以改变反应的平衡常数

正确答案：Qw==

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

2/5单选题

难度：

2.一氧化氮与一氧化碳都是汽车尾气里的有害物质，它们能缓慢地起反应生成氮气和二氧化碳. 对此反应，下列叙述中正确的是

A	使用催化剂能改变平衡常数
B	使用催化剂能改变反应速率
C	改变压强对反应速率没有影响
D	降低压强能加大反应速率

正确答案：Qg==

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

3/5单选题

难度：

3.在工业上合成氨反应：N₂+3H₂2NH₃，欲增大反应速率，下列措施可行的是

A	降低温度
B	减小压强
C	减小H₂的浓度
D	使用催化剂

正确答案：RA==

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

4/5单选题

难度：

4.下列实验中，反应速率加快是由催化剂引起的是

A	将炭块粉碎成粉末状，可使燃烧更加充分
B	过氧化氢中加入几滴氯化铁溶液，即可较快放出气体
C	在炭粉中加入氯酸钾，点燃时燃烧更为剧烈
D	用锌与稀硫酸反应制备氢气时，加入少量浓硫酸加快反应

正确答案：Qg==

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

5/5单选题

难度：

5.下列关于催化剂说法不正确的是

A	加入催化剂可以加快化学反应速率，原因是降低了反应的活化能
B	催化剂不影响平衡移动，但可以缩短建立平衡的时间
C	催化剂在反应前后质量和化学性质都没有改变
D	催化剂在反应历程中不参与反应

正确答案：RA==

QeOAgeWKoOWFpeWCrOWMluWJguWPr+S7pemZjeS9juS6huWPjeW6lOeahOa0u+WMluiDve+8jOWKoOW/q+WMluWtpuWPjeW6lOmAn+eOh++8jOaVhUHmraPnoa7vvJs8YnI+QuOAgeWCrOWMluWJguS4jeW9seWTjeW5s+ihoeenu+WKqO+8jOS9huWPr+S7pee8qeefreW7uueri+W5s+ihoeeahOaXtumXtO+8jOaVhULmraPnoa7vvJs8YnI+Q+OAgeWCrOWMluWJgueahOeJueeCueWPr+S7peamguaLrOS4uuKAnOS4gOWPmOS6jOS4jeWPmOKAne+8jOS4gOWPmOaYr+iDveWkn+aUueWPmOWMluWtpuWPjeW6lOmAn+eOh++8jOS6jOS4jeWPmOaYr+aMh+i0qOmHj+WSjOWMluWtpuaAp+i0qOWcqOWMluWtpuWPjeW6lOWJjeWQjuS/neaMgeS4jeWPmO+8jOaVhUPplJnor6/vvJs8YnI+ROOAgeWCrOWMluWJguWcqOWPjeW6lOWOhueoi+S4reWPguS4juWMluWtpuWPjeW6lO+8jOS9huaYr+WPjeW6lOWQjuS8muWGjeeUn+aIkO+8jOi0qOmHj+WcqOWMluWtpuWPjeW6lOWJjeWQjuS/neaMgeS4jeWPmO+8jOaVhUTplJnor68uIDxicj7mlYXpgIlELiA=