本课配套习题挑战模式1/5
单选题
难度系数:
1.在一密闭容器中充入1molH2和1molI2(g),并在一定温度下使其发生反应:H2(g)+I2(g)
2HI(g)△H<0. 下列说法正确的是

A: 保持容器容积不变,向其中加入1molH2,反应速率不变 |
B: 保持容器容积不变,向其中加入1molAr,压强增大,平衡正向移动 |
C: 保持容器内气体压强不变,向其中加入1molAr,化学平衡常数增大 |
D: 保持容器内气体压强不变,向其中加入1molH2(g)和1molI2(g),化学平衡不移动 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOWinuWkp+awouawlOeJqei0qOeahOmHj++8jOawouawlOeahOa1k+W6puWinuWkp++8jOWPjeW6lOmAn+eOh+WKoOW/qw==
- 提示2:IOS/neaMgeWuueWZqOWuueenr+S4jeWPmO+8jOWQkeWFtuS4reWKoOWFpTFtb2xBcu+8jOWPjeW6lOa3t+WQiOeJqeWQhOe7hOWIhueahOa1k+W6puS4jeWPmO+8jOW5s+ihoeS4jeenu+WKqA==
- 提示3:IOWMluWtpuW5s+ihoeW4uOaVsOWPquWPl+a4qeW6puW9seWTje+8jOa4qeW6puS4jeWPmO+8jOWMluWtpuW5s+ihoeW4uOaVsOS4jeWPmO+8jOS4juWOi+W8uuaXoOWFsw==
- 提示4:6K+l5Y+N5bqU5YmN5ZCO5rCU5L2T55qE5L2T56ev5LiN5Y+Y77yM5Y6L5by65LiN5b2x5ZON5bmz6KGh56e75Yqo
- 答案:RA==
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
本课配套习题挑战模式2/5
单选题
难度系数:
2.把4种不同体积、不同浓度的X溶液,分别加入4个盛有10mL2mol•L-1盐酸的烧杯中,并加水稀释到50mL,此时X和盐酸进行反应,其中反应速率最大的是( )
A: 25mL,3mol•L-1 |
B: 20mL,2mol•L-1 |
C: 18mL,4mol•L-1 |
D: 10mL,3mol•L-1 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOaXoOiuuuS9k+enr+Wkp+Wwj++8jOW9seWTjeWMluWtpuWPjeW6lOmAn+eOh+eahOWboOe0oOS4uua1k+W6puOAgg==
- 答案:Qw==
5peg6K665L2T56ev5aSn5bCP77yM5b2x5ZON5YyW5a2m5Y+N5bqU6YCf546H55qE5Zug57Sg5Li65rWT5bqm44CCPGJyPuaVhemAiUMuIA==
本课配套习题挑战模式3/5
单选题
难度系数:
3.反应3Fe(s)+4H2O(g)
Fe3O4+4H2(g)在一可变的密闭容器中进行,下列条件的改变对其反应速率几乎无影响的是

A: 保持体积不变,增加H2O(g)的量 |
B: 将容器的体积缩小一半 |
C: 保持体积不变,充入Ne使体系压强增大 |
D: 压强不变,充入Ne使容器的体积增大 |
一次做对,真牛!
+5奖励规则>
- 提示1:5Zug5Y+N5bqU54mp5rWT5bqm6LaK5aSn77yM5YyW5a2m5Y+N5bqU6YCf546H6LaK5b+r77yM5omA5Lul5aKe5YqgSDxzdWI+Mjwvc3ViPk/vvIhn77yJ55qE6YeP77yM5Y+N5bqU6YCf546H5Yqg5b+r77yb
- 提示2:5bCG5a655Zmo55qE5L2T56ev57yp5bCP5LiA5Y2K77yM5Y+N5bqU5L2T57O75Lit54mp6LSo55qE5rWT5bqm5aKe5aSn77yM5YiZ5YyW5a2m5Y+N5bqU6YCf546H5aKe5aSn77yb
- 提示3:IOS/neaMgeS9k+enr+S4jeWPmO+8jOWFheWFpU5l77yMTmXkuI3lj4LkuI7lj43lupTvvIzlj43lupTkvZPns7vkuK3nmoTlkITnianotKjnmoTmtZPluqbkuI3lj5jvvIzliJnlj43lupTpgJ/njofkuI3lj5jvvIzmlYVD5a+56YCf546H5peg5b2x5ZON77yb
- 提示4:5L+d5oyB5Y6L5by65LiN5Y+Y77yM5YWF5YWlTmXvvIzkvb/lrrnlmajnmoTkvZPnp6/lj5jlpKfvvIzlj43lupTkvZPns7vkuK3lkITnianotKjnmoTmtZPluqblh4/lsI/vvIzliJnlj43lupTpgJ/njoflh4/lsI/vvJs=
- 答案:Qw==
QeOAgeWboOWPjeW6lOeJqea1k+W6pui2iuWkp++8jOWMluWtpuWPjeW6lOmAn+eOh+i2iuW/q++8jOaJgOS7peWinuWKoEg8c3ViPjI8L3N1Yj5P77yIZ++8ieeahOmHj++8jOWPjeW6lOmAn+eOh+WKoOW/q++8mzxicj5C44CB5bCG5a655Zmo55qE5L2T56ev57yp5bCP5LiA5Y2K77yM5Y+N5bqU5L2T57O75Lit54mp6LSo55qE5rWT5bqm5aKe5aSn77yM5YiZ5YyW5a2m5Y+N5bqU6YCf546H5aKe5aSn77ybPGJyPkPjgIHkv53mjIHkvZPnp6/kuI3lj5jvvIzlhYXlhaVOZe+8jE5l5LiN5Y+C5LiO5Y+N5bqU77yM5Y+N5bqU5L2T57O75Lit55qE5ZCE54mp6LSo55qE5rWT5bqm5LiN5Y+Y77yM5YiZ5Y+N5bqU6YCf546H5LiN5Y+Y77yM5pWFQ+WvuemAn+eOh+aXoOW9seWTje+8mzxicj5E44CB5L+d5oyB5Y6L5by65LiN5Y+Y77yM5YWF5YWlTmXvvIzkvb/lrrnlmajnmoTkvZPnp6/lj5jlpKfvvIzlj43lupTkvZPns7vkuK3lkITnianotKjnmoTmtZPluqblh4/lsI/vvIzliJnlj43lupTpgJ/njoflh4/lsI/vvJs8YnI+5pWF6YCJ77yaQy4g
本课配套习题挑战模式4/5
单选题
难度系数:
4.某化学兴趣小组欲探究反应物浓度对化学反应速率的影响,在保持其他条件相同时,使四份质量分数不同的H2O2溶液发生分解反应:2H2O2═==O2↑+2H2O,其中氧气生成速率最大的是
A: 5%的H2O2溶液 |
B: 10%的H2O2溶液 |
C: 20%的H2O2溶液 |
D: 30%的H2O2溶液 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOWcqOS/neaMgeWFtuS7luadoeS7tuebuOWQjOaXtu+8jOa6tua2suS4reWPjeW6lOeJqeeahOa1k+W6pui2iuWkp++8jOa0u+WMluWIhuWtkOeahOaVsOebrui2iuWkp++8jOacieaViOeisOaSnui2iuWkmu+8jOWPjeW6lOmAn+eOh+i2iuWkpw==
- 答案:RA==
5Zyo5L+d5oyB5YW25LuW5p2h5Lu255u45ZCM5pe277yM5rq25ray5Lit5Y+N5bqU54mp55qE5rWT5bqm6LaK5aSn77yM5rS75YyW5YiG5a2Q55qE5pWw55uu6LaK5aSn77yM5pyJ5pWI56Kw5pKe6LaK5aSa77yM5Y+N5bqU6YCf546H6LaK5aSn77yM5Y+q5pyJ6YCJ6aG55LitROeahOa1k+W6puacgOWkp++8jDxicj7mlYXpgIlELiA=
本课配套习题挑战模式5/5
单选题
难度系数:
5.一定量的盐酸跟过量的铁粉反应时,为了减缓反应速度,且不影响生成氢气的总量,可向盐酸中加入适量的( )
①NaOH固体②H2O③NaNO3溶液④CH3COONa固体⑤KCl溶液.
①NaOH固体②H2O③NaNO3溶液④CH3COONa固体⑤KCl溶液.
A: ①② |
B: ②④⑤ |
C: ②③⑤ |
D: ②③④ |
一次做对,真牛!
+5奖励规则>
- 提示1:IEZl5LiO55uQ6YW45Y+N5bqU55qE5a6e6LSo5Li6RmUrMkg8c3VwPis8L3N1cD7ilZBGZTxzdXA+Mis8L3N1cD4rSDxzdWI+Mjwvc3ViPuKGke+8jOS4uuS6huWHj+e8k+WPjeW6lOmAn+W6pu+8jOS4lOS4jeW9seWTjeeUn+aIkOawouawlOeahOaAu+mHj++8jOWImeWPr+WHj+Wwj+awouemu+WtkOeahOa1k+W6pg==
- 提示2:5L2G5LiN5pS55Y+Y5rCi56a75a2Q55qE54mp6LSo55qE6YeP
- 提示3:5Yqg5YWl55qE54mp6LSo6ZyA6KaB5pyJ4oCc56iA6YeK4oCd55qE5L2c55So44CC
- 答案:Qg==
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