创建自己的小题库
搜索
【简答题】
根据折合质量和键力常数，分别计算下列三组物质的振动波数？ （1） ；（ 的键力常数分别是15.6、9.6和4.5N/cm）；
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈
收藏
举报参考答案：
举一反三
【简答题】设阿伏加德罗常数为6.02×1023mol-1．下列关于1molH2O的叙述正确的是（ ）
A.
含有1molH2
B.
在标准状况下体积为22.4L
C.
含有6.02×1023个水分子
D.
质量为18g/mol
【单选题】已知下列单键伸缩振动中 C-C C-N C-O 键力常数 k /(N·cm -1 ) 4.5 5.8 5.0 吸收峰波长 λ/μm 6 6.46 6.85 则 C-C, C-N, C-O 键振动能级之差 ⊿ E 顺序为 ( )
A.
C-C > C-N > C-O
B.
C-N > C-O > C-C
C.
C-C > C-O > C-N
D.
C-O > C-N > C-C
【单选题】用NA表示阿伏加德罗常数的值．下列叙述正确的是（ ）
A.
在2升2mol/L的（NH4）2SO4溶液中所含的NH4+的数目是8NA
B.
常温常压下，2molCaC2晶体中含有的阴离子数为2NA
C.
14gN2和CO的混合气体含有的分子数目为0.5NA
D.
标准状况下，11.2L庚烷完全燃烧后生成的CO2分子数为3.5NA
【单选题】有三个电池 设这三个电池中各物质浓度都是0.1molL-1，则它们的（）
A.
电池反应式不同，ε不同
B.
电池反应式不同，ε相同
C.
电池反应式相同，ε相同
D.
电池反应式相同，ε不同
【单选题】Passage One Gravity is a slippery beast. We don’t know how strong it is, how it works or how fast its effects move. But this year we made progress. October saw the most accurate measurem...
A.
Newton and Einstein had similar opinions on the speed of gravity
B.
the author of the passage is in favor of Einstein’s thought about the speed of gravity
C.
astronomers think that both Newton and Einstein were wrong on the speed of gravity
D.
Newton’s thought about the gravitational effect is out of date
【单选题】Gravity is a slippery beast. We don’t know how strong it is, how it works or how fast its effects move. But this year we made progress. October saw the most accurate measurement yet of Newton’s gravit...
A.
two things far apart might vibrate in unison
B.
the ripples in space-time are only imagined
C.
there exist gravitational waves
D.
abrupt, violent cosmic s lead to gravitational waves
相关题目：
【简答题】设阿伏加德罗常数为6.02×1023mol-1．下列关于1molH2O的叙述正确的是（ ）
A.
含有1molH2
B.
在标准状况下体积为22.4L
C.
含有6.02×1023个水分子
D.
质量为18g/mol
【单选题】已知下列单键伸缩振动中 C-C C-N C-O 键力常数 k /(N·cm -1 ) 4.5 5.8 5.0 吸收峰波长 λ/μm 6 6.46 6.85 则 C-C, C-N, C-O 键振动能级之差 ⊿ E 顺序为 ( )
A.
C-C > C-N > C-O
B.
C-N > C-O > C-C
C.
C-C > C-O > C-N
D.
C-O > C-N > C-C
【单选题】用NA表示阿伏加德罗常数的值．下列叙述正确的是（ ）
A.
在2升2mol/L的（NH4）2SO4溶液中所含的NH4+的数目是8NA
B.
常温常压下，2molCaC2晶体中含有的阴离子数为2NA
C.
14gN2和CO的混合气体含有的分子数目为0.5NA
D.
标准状况下，11.2L庚烷完全燃烧后生成的CO2分子数为3.5NA
【单选题】有三个电池 设这三个电池中各物质浓度都是0.1molL-1，则它们的（）
A.
电池反应式不同，ε不同
B.
电池反应式不同，ε相同
C.
电池反应式相同，ε相同
D.
电池反应式相同，ε不同
【单选题】Passage One Gravity is a slippery beast. We don’t know how strong it is, how it works or how fast its effects move. But this year we made progress. October saw the most accurate measurem...
A.
Newton and Einstein had similar opinions on the speed of gravity
B.
the author of the passage is in favor of Einstein’s thought about the speed of gravity
C.
astronomers think that both Newton and Einstein were wrong on the speed of gravity
D.
Newton’s thought about the gravitational effect is out of date
【单选题】Gravity is a slippery beast. We don’t know how strong it is, how it works or how fast its effects move. But this year we made progress. October saw the most accurate measurement yet of Newton’s gravit...
A.
two things far apart might vibrate in unison
B.
the ripples in space-time are only imagined
C.
there exist gravitational waves
D.
abrupt, violent cosmic s lead to gravitational waves
参考解析：
AI解析
重新生成
题目纠错 0
发布
