水的凝固點下降常數:亨利定律
亨利定律
![依數性質:以凝固點下降測分子量](https://i0.wp.com/api.multiavatar.com/%E4%BE%9D%E6%95%B8%E6%80%A7%E8%B3%AA%EF%BC%9A%E4%BB%A5%E5%87%9D%E5%9B%BA%E9%BB%9E%E4%B8%8B%E9%99%8D%E6%B8%AC%E5%88%86%E5%AD%90%E9%87%8F.png?apikey=viVnb6N20jclO8)
依數性質:以凝固點下降測分子量
http://gclab.thu.edu.tw
... 水的凝固點. 而被廣泛的應用於汽車水箱的抗凍上。 當一液態溶液在發生相轉移時,若只有 ... 沸點上升常數和凝固點下降常數。表一中列出一些常用溶劑的凝固點下降. 常數 ...
![凝固點下降Freezing](https://i0.wp.com/api.multiavatar.com/%E5%87%9D%E5%9B%BA%E9%BB%9E%E4%B8%8B%E9%99%8DFreezing-Point+Depression.png?apikey=viVnb6N20jclO8)
凝固點下降Freezing
http://earthkart2011.blogspot.
純水的凝固點是0℃,在0℃液態純水與固態冰(純水結凍)的蒸汽壓 ... Kf是特定溶劑的常數,稱為凝固點下降常數modal freezing-point depression constant。
![凝固點下降的測定實驗目的](https://i0.wp.com/api.multiavatar.com/%E5%87%9D%E5%9B%BA%E9%BB%9E%E4%B8%8B%E9%99%8D%E7%9A%84%E6%B8%AC%E5%AE%9A%E5%AF%A6%E9%A9%97%E7%9B%AE%E7%9A%84%3A%E9%80%8F%E9%81%8E%E5%8A%A0%E5%85%A5%E6%BA%B6%E8%B3%AA%E4%BE%86%E6%B8%AC%E9%87%8F%E6%BA%B6%E5%8A%91%E7%9A%84+....png?apikey=viVnb6N20jclO8)
凝固點下降的測定實驗目的
http://orglab.thu.edu.tw
w:溶質重(g),M:溶質分子量(g/mol),Cm:重量莫耳濃度。 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 ...
![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
![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
∆Tb:凝固點下降量,Cm:重量莫耳濃度,Kb :沸點上升常數。 為什麼溶液的凝固點應該比純溶劑「低」?直觀說來,當物質要從液態變成固態分子必須從混亂 ...
![液、固體分子量求法](https://i0.wp.com/api.multiavatar.com/%E6%B6%B2%E3%80%81%E5%9B%BA%E9%AB%94%E5%88%86%E5%AD%90%E9%87%8F%E6%B1%82%E6%B3%95-%E7%9F%A5%E8%AD%98%E7%99%BE%E7%A7%91.png?apikey=viVnb6N20jclO8)
液、固體分子量求法
https://www.3people.com.tw
△Tˍf:溶液凝固點下降度數(℃) = 純溶劑凝固點-溶液凝固點. Kˍf:凝固點下降常數,如溶劑為水,其值為1.86. 溶劑之滲透壓π:. πV=NRT= RT或π=CRT. π:溶液的滲透壓(atm) V ...
![溶液凝固點下降(Freezing](https://i0.wp.com/api.multiavatar.com/%E6%BA%B6%E6%B6%B2%E5%87%9D%E5%9B%BA%E9%BB%9E%E4%B8%8B%E9%99%8D%EF%BC%88Freezing-point+Depression%EF%BC%89%E7%9A%84%E6%87%89%E7%94%A8%EF%BC%88%E4%B8%80%EF%BC%89.png?apikey=viVnb6N20jclO8)
溶液凝固點下降(Freezing
https://highscope.ch.ntu.edu.t
∆Tf:凝固點下降量, Kf:凝固點下降常數,w:溶質重(g),M:溶質分子量(g/mol),W:溶劑重(g)。 這個測量分子量方式比較令人困擾的是,凝固點下降具依數 ...