本课配套习题挑战模式1/5
单选题
难度系数:
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 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOS9v+eUqOWCrOWMluWJguWPr+S7peWinuWkp+ato+WPjeW6lOmAn+eOh++8jOi/mOWPr+S7peWQjOetieeoi+W6pueahOWinuWkp+mAhuWPjeW6lOmAn+eOhw==
- 提示2:IOWCrOWMluWJguWPquiDveWKoOW/q+WPjeW6lOmAn+eOh++8jOS4jeS8muW8lei1t+WMluWtpuW5s+ihoeeahOenu+WKqA==
- 提示3:IOWCrOWMluWJguWKoOW/q+WPjeW6lOmAn+eOh+aYr+mAmui/h+mZjeS9juWPjeW6lOeahOa0u+WMluiDveadpeWunueOsOeahA==
- 提示4:5bmz6KGh5bi45pWw5Y+q5Y+X5rip5bqm55qE5b2x5ZON77yM5ZKM5YKs5YyW5YmC55qE5L2/55So5LiO5ZCm5peg5YWz
- 答案:Qw==
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
本课配套习题挑战模式2/5
单选题
难度系数:
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 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOW5s+ihoeW4uOaVsOaYr+a4qeW6pueahOWHveaVsO+8jOa3u+WKoOWCrOWMluWJguS4jeiDveaUueWPmOW5s+ihoeW4uOaVsA==
- 提示2:IOS9v+eUqOWCrOWMluWJguiDvemZjeS9juWPjeW6lOeahOa0u+WMluiDve+8jOaUueWPmOWPjeW6lOmAn+eOhw==
- 提示3:IOaUueWPmOWOi+W8uuWvueacieawlOS9k+WPguWKoOeahOWMluWtpuWPjeW6lOmAn+eOh+S8muS6p+eUn+W9seWTje+8jOWvueS6juaXoOawlOS9k+WPguWKoOeahOWPjeW6lOaXoOW9seWTjQ==
- 提示4:5a+55pyJ5rCU5L2T5Y+C5Yqg55qE5YyW5a2m5Y+N5bqU77yM6ZmN5L2O5Y6L5by65Lya5L2/5b6X5Y+N5bqU6YCf546H5YeP5oWi
- 答案:Qg==
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
本课配套习题挑战模式3/5
单选题
难度系数:
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 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOmZjeS9jua4qeW6pu+8jOa0u+WMluWIhuWtkOeZvuWIhuaVsOWHj+Wwj++8jOWPjeW6lOmAn+eOh+WHj+Wwjw==
- 提示2:IOWHj+Wwj+WOi+W8uu+8jOWPjeW6lOeJqea1k+W6pumZjeS9ju+8jOWPjeW6lOmAn+eOh+WHj+Wwjw==
- 提示3:IOWHj+Wwj0g8c3ViPjI8L3N1Yj7nmoTmtZPluqbvvIzljZXkvY3kvZPnp6/mtLvljJbliIblrZDmlbDnm67lh4/lsI/vvIzlj43lupTpgJ/njoflh4/lsI8=
- 提示4:5L2/55So5YKs5YyW5YmC77yM6ZmN5L2O5Y+N5bqU55qE5rS75YyW6IO977yM5aKe5aSn5rS75YyW5YiG5a2Q55qE55m+5YiG5pWw77yM5Y+N5bqU6YCf546H5aKe5aSn
- 答案:RA==
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
本课配套习题挑战模式4/5
单选题
难度系数:
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 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOeCreWdl+eyieeijuaIkOeyieacq+eKtu+8jOWbuuS9k+ihqOmdouenr+WinuWkp++8jOWPjeW6lOmAn+eOh+WinuWkp++8jOS4juWCrOWMluWJguaXoOWFsw==
- 提示2:IELpobnkuK3vvIzmsK/ljJbpk4HotbfliLDlgqzljJbliYLnmoTkvZznlKg=
- 答案:Qg==
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
本课配套习题挑战模式5/5
单选题
难度系数:
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 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOWKoOWFpeWCrOWMluWJguWPr+S7pemZjeS9juS6huWPjeW6lOeahOa0u+WMluiDve+8jOWKoOW/q+WMluWtpuWPjeW6lOmAn+eOhw==
- 提示2:IOWCrOWMluWJguS4jeW9seWTjeW5s+ihoeenu+WKqO+8jOS9huWPr+S7pee8qeefreW7uueri+W5s+ihoeeahOaXtumXtO+8jA==
- 提示3:IOWCrOWMluWJgueahOeJueeCueWPr+S7peamguaLrOS4uuKAnOS4gOWPmOS6jOS4jeWPmOKAne+8jOS4gOWPmOaYr+iDveWkn+aUueWPmOWMluWtpuWPjeW6lOmAn+eOh++8jOS6jOS4jeWPmOaYr+aMh+i0qOmHj+WSjOWMluWtpuaAp+i0qOWcqOWMluWtpuWPjeW6lOWJjeWQjuS/neaMgeS4jeWPmA==
- 提示4:5YKs5YyW5YmC5Zyo5Y+N5bqU5Y6G56iL5Lit5Y+C5LiO5YyW5a2m5Y+N5bqU77yM5L2G5piv5Y+N5bqU5ZCO5Lya5YaN55Sf5oiQ77yM6LSo6YeP5Zyo5YyW5a2m5Y+N5bqU5YmN5ZCO5L+d5oyB5LiN5Y+Y
- 答案:RA==
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