水的kb kf:[問題]沸點上升和凝固點下降
[問題]沸點上升和凝固點下降
![[110化學指考總複習(6](https://i0.wp.com/api.multiavatar.com/%5B110%E5%8C%96%E5%AD%B8%E6%8C%87%E8%80%83%E7%B8%BD%E8%A4%87%E7%BF%92%286-2%29%5D+%E9%81%B8%E4%BF%AE%E5%8C%96%E5%AD%B8%28%E4%B8%8A%29+Ch3.%E6%B6%B2%E9%AB%94%E8%88%87%E6%BA%B6%E6%B6%B2%7C+%E6%8B%89%E5%8D%88+....png?apikey=viVnb6N20jclO8)
[110化學指考總複習(6
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![[化學分科總複習] 選修化學(I) Ch3](https://i0.wp.com/api.multiavatar.com/%5B%E5%8C%96%E5%AD%B8%E5%88%86%E7%A7%91%E7%B8%BD%E8%A4%87%E7%BF%92%5D+%E9%81%B8%E4%BF%AE%E5%8C%96%E5%AD%B8%28I%29+Ch3-9.%E6%B6%B2%E9%AB%94%E8%88%87%E6%BA%B6%E6%B6%B2%7C+%E5%87%9D%E5%9B%BA%E9%BB%9E%E4%B8%8B%E9%99%8D+....png?apikey=viVnb6N20jclO8)
[化學分科總複習] 選修化學(I) Ch3
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![亨利定律](https://i0.wp.com/api.multiavatar.com/%E4%BA%A8%E5%88%A9%E5%AE%9A%E5%BE%8B-%E7%9F%A5%E8%AD%98%E7%99%BE%E7%A7%91.png?apikey=viVnb6N20jclO8)
亨利定律
https://www.3people.com.tw
... 水Kb = 0.52) Cm:溶液的重量莫耳濃度 (2) 凝固點:固體溶劑之蒸氣=液體溶劑之蒸氣 ... 水Kf = 1.86) Cm:溶液的重量莫耳濃度 (3) 適用於稀薄,非電解質溶液及非揮發性 ...
![依數性質(Colligative Properties)](https://i0.wp.com/api.multiavatar.com/%E4%BE%9D%E6%95%B8%E6%80%A7%E8%B3%AA%EF%BC%88Colligative+Properties%EF%BC%89+%7C+%E7%A7%91%E5%AD%B8Online+-+%E5%9C%8B%E7%AB%8B%E8%87%BA%E7%81%A3%E5%A4%A7%E5%AD%B8.png?apikey=viVnb6N20jclO8)
依數性質(Colligative Properties)
https://highscope.ch.ntu.edu.t
還有滲透壓,除了應用在眾人熟知的RO逆滲透水與海水淡化外,自然界生物的 ... 沸點上升 ∆Tb = i Kb Cm (∆Tb:凝固點下降量,Cm:重量莫耳濃度 ...
![凝固點降低](https://i0.wp.com/api.multiavatar.com/%E5%87%9D%E5%9B%BA%E9%BB%9E%E9%99%8D%E4%BD%8E-+%E7%B6%AD%E5%9F%BA%E7%99%BE%E7%A7%91%EF%BC%8C%E8%87%AA%E7%94%B1%E7%9A%84%E7%99%BE%E7%A7%91%E5%85%A8%E6%9B%B8.png?apikey=viVnb6N20jclO8)
凝固點降低
https://zh.wikipedia.org
KF,凝固點降低常數,只取決於溶劑性質,而非溶液。對於水,KF = 1.853 K·kg/mol. b,重量莫耳濃度(溶質物質的量比溶劑質量 ...
![水溶液凝固點降低](https://i0.wp.com/api.multiavatar.com/%E6%B0%B4%E6%BA%B6%E6%B6%B2%E5%87%9D%E5%9B%BA%E9%BB%9E%E9%99%8D%E4%BD%8E+-+%E7%A7%91%E5%AD%B8Online.png?apikey=viVnb6N20jclO8)
水溶液凝固點降低
https://highscope.ch.ntu.edu.t
Kf 稱為凝固點下降常數(Cryoscopic constant),一般指重量莫耳凝固點常數(Molar cryoscopic constant)。Kf值隨溶劑不同而改變,水的Kf = 1.86 K-kg/ ...
![水溶液凝固點降低與沸點升高](https://i0.wp.com/api.multiavatar.com/%E6%B0%B4%E6%BA%B6%E6%B6%B2%E5%87%9D%E5%9B%BA%E9%BB%9E%E9%99%8D%E4%BD%8E%E8%88%87%E6%B2%B8%E9%BB%9E%E5%8D%87%E9%AB%98+-+%E7%A7%91%E5%AD%B8Online.png?apikey=viVnb6N20jclO8)
水溶液凝固點降低與沸點升高
https://highscope.ch.ntu.edu.t
水溶液有很多特性,譬如具有滲透壓、高表面張力、凝固點和沸點與水不同等,18世紀時科學家就知道水溶液的凝固點比純水低與沸點比純水高。 ... Kb :沸點上升 ...
![水的kb和kf是多少](https://i0.wp.com/api.multiavatar.com/%E6%B0%B4%E7%9A%84kb%E5%92%8Ckf%E6%98%AF%E5%A4%9A%E5%B0%91.png?apikey=viVnb6N20jclO8)
水的kb和kf是多少
https://jingyan.baidu.com
该公式对一切不挥发性溶质的稀薄溶液都适用。 Kf(凝固点降低常数):只与溶剂性质有关。 Kb(沸点升高常数):只与溶剂本身性质有关。