日本h番全彩无遮挡h工口-国产精品无码无片在线观看3d-四虎国产成人永久精品免费-广东少妇大战黑人34厘米视频-人人妻人人狠人人爽天天综合网

當前位置:首頁-新聞資訊

鋁的比熱容和熔化熱的相關介紹

來源:http://www.kangyanghua.com/ 發布時間:2021-03-30

鋁的比熱容是0.88×103 J/(kg·℃), 溶點:660.37鋁的熔解熱是3.98×105J/kg,鋁的蒸發熱是1.05× 107J/kg.熔解熱 單位質量的晶體物質在熔點時,從固態變成液態所吸收的熱量,叫做這種物質的熔解熱。
The specific heat capacity of aluminum is 0.88 × 103 J / (kg ·℃), the melting point is 660.37, the melting heat of aluminum is 3.98 × 105 J / kg, and the evaporation heat of aluminum is 1.05 × 107 J / kg.
熔解熱: 單位質量晶體物質,在熔點由固相轉變為液相所吸收的相變潛熱。晶體的熔解是粒子由規則排列轉向不規則排列的過程。這些熱量就將用來反抗分子引力做功,增加分子的勢能,也就是說,這時物質所吸收的熱量是破壞點陣結構所需的能量,使分子的運動狀態起質的變化從固態的分子熱運動轉變成液態的分子熱運動,同時改變了物質的狀態。
Melting heat: the latent heat of phase transformation absorbed by a unit mass of crystalline material when it changes from solid phase to liquid phase at the melting point. The melting of crystals is a process in which the particles change from regular arrangement to irregular arrangement. The heat will be used to resist the molecular gravity to do work and increase the potential energy of the molecule. In other words, the heat absorbed by the substance is the energy needed to destroy the lattice structure, which makes the motion state of the molecule change qualitatively from the solid molecular thermal motion to the liquid molecular thermal motion, and changes the state of the substance.


所以晶體不僅有固定的熔點,而且還需要吸收一定數量的熱量來實現它的熔解。由于物質不同其晶體空間點陣結構不同,盡管各種不同物質的質量相同,但在熔解時所吸收的熱量卻不相同。
So the crystal not only has a fixed melting point, but also needs to absorb a certain amount of heat to achieve its melting. Due to different materials, the lattice structure of crystal space is different. Although the mass of different materials is the same, the heat absorbed during melting is different.
為表示晶體物質的這一特性,而引入熔解熱。它表示單位質量的某種固態物質在熔點時完全熔解成同溫度的液態物質所需要的熱量;該物質在凝固時,在凝固點,也等于單位質量的同種液態物質,轉變為晶體所放出的熱量。
In order to express this characteristic of crystal material, the melting heat is introduced. It represents the heat required for a solid substance of unit mass to completely melt into a liquid substance at the same temperature at the melting point; when the substance solidifies, at the freezing point, it is also equal to the heat released by the same liquid substance of unit mass to transform into a crystal.
如果用λ表示物質的熔解熱,m表示物質的質量,Q表示熔解時所需要吸收的熱量,則 Q=λm 熔解熱的單位是焦耳/克或焦耳/千克。測量熔點較高的物體的熔解熱是比較困難的,但是對于熔點較低的物體,就可以用量熱器來測定。
If λ is used to denote the melting heat of a substance, M is the mass of the substance, and Q is the heat to be absorbed during melting, then q = λ m, the unit of melting heat is Joule / g or Joule / kg. It is difficult to measure the melting heat of the object with high melting point, but for the object with low melting point, it can be measured by calorimeter.

主站蜘蛛池模板: 强奸乱伦影音先锋| 国产乱人伦av在线a麻豆| 亚洲狠狠婷婷综合久久蜜芽| 亚洲精品白浆高清久久久久久| 女女女女女裸体处开bbb| 亚洲成av人影院| 亚洲中文字幕无码中字| 久久精品国产久精国产| 亚洲人成网站色www| 女人18毛片a级毛片| 丰满少妇被猛烈进入| 久久99精品久久水蜜桃| 男女18禁啪啪无遮挡激烈网站| 国产h视频在线观看| 50路60路老熟妇啪啪| 精品熟女少妇av免费久久| 欧美色aⅴ欧美综合色| 久久亚洲精品中文字幕无码| 成人自慰女黄网站免费大全| 国模无码一区二区三区| 久久 国产 尿 小便 嘘嘘| 凹凸在线无码免费视频| 我的公把我弄高潮了视频| 青青国产线免观| 免费观看黄网站| 高潮迭起av乳颜射后入| 亚洲av无码国产精品色午友在线 | 在线永久看片免费的视频| 国产午夜福利精品一区二区三区| 肉体裸交137日本大胆摄影| 熟妇人妻一区二区三区四区| 久久久久99精品成人片欧美| 国产97色在线 | 日韩| 免费黄色电影在线观看| 男女爱爱好爽视频免费看| 国产精品jizz在线观看无码| 久久久精品人妻一区二区三区四| 国内精品久久人妻无码不卡| 国产女人天天春夜夜春| 国产精品亚洲精品日韩已满| 国产成年女人毛片80s网站|