本课配套习题挑战模式1/5
单选题
难度系数:
1.一定条件下的可逆反应:2SO2(g)+O2(g)2SO3(g),若改变下列条件,可提高反应物中的活化分子百分数的是
A: 升高温度 |
B: 降低温度 |
C: 增大压强 |
D: 增大反应物浓度 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOWNh+mrmOa4qeW6puWPr+aPkOmrmOWPjeW6lOeJqeS4reeahOa0u+WMluWIhuWtkOeZvuWIhuaVsO+8jOmZjeS9jua4qeW6pumZjeS9juWPjeW6lOeJqeS4reeahOa0u+WMluWIhuWtkOeZvuWIhuaVsA==
- 提示2:IOWinuWkp+WOi+W8uuOAgeWinuWkp+WPjeW6lOeJqea1k+W6puWPquWinuWkp+a0u+WMluWIhuWtkOeahOa1k+W6pu+8jOS4jeaUueWPmOa0u+WMluWIhuWtkOeZvuWIhuaVsA==
- 答案:QQ==
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本课配套习题挑战模式2/5
单选题
难度系数:
2.有关碰撞理论,下列说法中正确的是
A: 具有足够能量的分子(活化分子)相互碰撞就一定能发生化学反应 |
B: 增大反应物浓度,可增大活化分子的百分数,从而使有效碰撞次数增大 |
C: 升温能使化学反应速率增大,主要原因是增加了反应物分子中活化分子的百分数 |
D: 催化剂不影响反应活化能,从而只影响反应速率不影响化学平衡 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOacieaViOeisOaSnumcgOimgeiAg+iZkeiDvemHj+WboOe0oO+8jOWQjOaXtuS5n+imgeazqOaEj+epuumXtOWboOe0oA==
- 提示2:IOWinuWkp+WPjeW6lOeJqea1k+W6pu+8jOavj+S9k+enr+eahOa0u+WMluWIhuWtkOS4quaVsOWinuWkp++8jOS9hueZvuWIhuaVsOS4jeWPmA==
- 提示3:IOWCrOWMluWJguaUueWPmOS6huWPjeW6lOi3r+W+hO+8jOmZjeS9juS6huWPjeW6lOa0u+WMluiDveOAguWinuWkp+S6huato+mAhuWPjeW6lOmAn+eOhw==
- 答案:Qw==
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本课配套习题挑战模式3/5
单选题
难度系数:
3.下列说法正确的是
A: 增大压强,活化分子百分数增大,化学反应速率一定增大 |
B: 升高温度,活化分子百分数不变,化学反应速率一定增大 |
C: 加入反应物,使活化分子百分数增大,化学反应速率增大 |
D: 一般使用催化剂可以降低反应的活化能,增大活化分子百分数,增大化学反应速率 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOWinuWkp+WOi+W8uu+8jOWNleS9jeS9k+enr+a0u+WMluWIhuWtkOeahOaVsOebruWinuWkp++8jOa0u+WMluWIhuWtkOeahOeZvuWIhuaVsOS4jeWPmO+8mw==
- 提示2:IOWNh+mrmOa4qeW6pu+8jOa0u+WMluWIhuWtkOeahOeZvuWIhuaVsOWinuWkp++8jOWPjeW6lOmAn+eOh+WinuWkpw==
- 提示3:IOWKoOWFpeWPjeW6lOeJqe+8jOWPjeW6lOeJqeeahOa1k+W6puWinuWkp++8jOWNleS9jeS9k+enr+a0u+WMluWIhuWtkOeahOaVsOebruWinuWkp++8jOa0u+WMluWIhuWtkOeahOeZvuWIhuaVsOS4jeWPmA==
- 提示4:5YKs5YyW5YmC5Y+v5Lul6ZmN5L2O5Y+N5bqU55qE5rS75YyW6IO977yM5aKe5aSn5rS75YyW5YiG5a2Q55m+5YiG5pWw
- 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.下列关于碰撞的说法正确的是
A: 活化分子之间的碰撞一定能引发化学反应,即活化分子之间的碰撞为有效碰撞 |
B: 发生有效碰撞的分子必为活化分子 |
C: 反应物分子之间的碰撞一定会引发化学键的断裂 |
D: 反应物分子之间只要有合适的取向的碰撞必为有效碰撞 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOa0u+WMluWIhuWtkOS5i+mXtOeahOeisOaSnuS5n+acieWPr+iDveS4jeiDveWkn+WPkeeUn+WPjeW6lO+8jOacieWPr+iDveWMluWQiOmUruS4jeaWreijgu+8jOS9huWmguaenOWPkeeUn+S6huWPjeW6lO+8jOebuOeisOaSnueahOWIhuWtkOS4gOWumuaYr+a0u+WMluWIhuWtkA==
- 提示2:IOacieaViOeisOaSnuWHuuS6huepuumXtOWboOe0oOWklu+8jOi/mOacieiDvemHj+WboOe0oOOAguWmguaenOS4pOS4queisOaSnueahOWIhuWtkOi+vuS4jeWIsOWPjeW6lOaJgOmcgOeahOiDvemHj++8jOS5n+S4jeiDveWPkeeUn+WPjeW6lO+8jOS4jeaYr+acieaViOeisOaSng==
- 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.F2、Cl2、Br2、I2分别与H2反应在相同的条件下. 活化分子物质的量分数最大的是
A: F2+H2=2HF |
B: Cl2+H2=2HCl |
C: Br2+H2=2HBr |
D: I2+H2=2HI |
一次做对,真牛!
+5奖励规则>
- 提示1:IOmdnumHkeWxnuaAp++8mkbvvJ5DbO+8nkJy77yeSQ==
- 提示2:IOWFg+e0oOeahOmdnumHkeWxnuaAp+i2iuW8uu+8jOWvueW6lOeahOWNlei0qOi2iua0u+azvO+8jOS4juawouawlOWPjeW6lOi2iuWJp+eDiO+8jOa0u+WMluWIhuWtkOeJqei0qOeahOmHj+WIhuaVsOi2iuWkpw==
- 答案:QQ==
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