這篇文章是在說凡德瓦方程式，請問： 第五行的公式看他的推導還是沒有很清楚，他的推導方式是什麼？謝謝。

子子 除了在數學上簡單之外,還提供具 若考量到一特定分子接近容器瓶壁的過程(圖5.23),分子受到周圍 分子吸引力的影響後會減低原本分子對瓶壁的衝擊力。所以整體的影響 是造成真實氣體的壓力比我們預期的理想氣體來得小。凡得瓦提出真實 氣體壓力(Prea)和理想氣體壓力(Paea)的關係用等式表示為 an² Pideal = Preal + V2 个 觀察到的壓力 修正項 其中a是常數,n和V分別是莫耳數和容器的體積。壓力的修正項(ar² ²) 的內容可解釋如下:分子間作用力所造成的非理想氣體行為取決於 任何兩個分子靠近的頻率,而因為在特定空間中兩個分子中的一個分子 碰撞到另一個分子的機率正比於n/V,所以兩個分子彼此碰撞的機率正 比於1n²/V²,而a只是正比常數。 在非理想氣體行為上另外還有一項對於氣體體積的修正。在理想 氣體方程式中的是代表容器的體積。然而,雖然氣體分子的體積很 小,但它們在空間上確實占有一定的體積,因此容器中氣體的有效體積 會變成(V-nb),其中的是氣體莫耳數,而b是常數。nb這項代表的 意義就是n莫耳氣體所占的體積。

這篇文章是在說凡德瓦方程式，請問： 第五行的公式看他的推導還是沒有很清楚，他的推導方式是什麼？謝謝。

子子 除了在數學上簡單之外,還提供具 若考量到一特定分子接近容器瓶壁的過程(圖5.23),分子受到周圍 分子吸引力的影響後會減低原本分子對瓶壁的衝擊力。所以整體的影響 是造成真實氣體的壓力比我們預期的理想氣體來得小。凡得瓦提出真實 氣體壓力(Prea)和理想氣體壓力(Paea)的關係用等式表示為 an² Pideal = Preal + V2 个 觀察到的壓力 修正項 其中a是常數,n和V分別是莫耳數和容器的體積。壓力的修正項(ar² ²) 的內容可解釋如下:分子間作用力所造成的非理想氣體行為取決於 任何兩個分子靠近的頻率,而因為在特定空間中兩個分子中的一個分子 碰撞到另一個分子的機率正比於n/V,所以兩個分子彼此碰撞的機率正 比於1n²/V²,而a只是正比常數。 在非理想氣體行為上另外還有一項對於氣體體積的修正。在理想 氣體方程式中的是代表容器的體積。然而,雖然氣體分子的體積很 小,但它們在空間上確實占有一定的體積,因此容器中氣體的有效體積 會變成(V-nb),其中的是氣體莫耳數,而b是常數。nb這項代表的 意義就是n莫耳氣體所占的體積。

想請問4的時態？是跟圖二的用法一樣嗎

2. If it B (A) will rain (C) rained (D) had entered tomorrow, the baseball game will be put off. (B) rains (D) is raining O 3. 若我是個百萬富翁,就會定期捐些錢給慈善團體 (be) a millionaire, I If I Were money to the charities regularly. would donate 【105 學測】 (donate) some 4. 想像一下要是人類能重新長出一顆頭,那世界會變成怎樣? Imagine what the world would be like if humans could regrow their heads. 【106指考】 5.假如我現在住在美國,我就能說流利的英文了。(流利的:fluent) were the U.K, I would live in If I fluent English. speak

想問24.26.27 看起來很簡單但我不知道為什麼選那個 還有哪裡可以找得到歷屆的解析91~100年的謝謝

Now that you are planning to go to college, how can you select an ideal college for yourself? _(21)_____ its reputation or the test scores it requires for admission? In fact, it is not _____(22)_ simple as that. College education is far more complicated than (23) the reputation of a college or the test scores it requires. In addition to these two factors, you should also have (24) important information. Finding out which college suits you involves time and energy, but (25) more than those you might spend on buying a motorcycle or a computer. Here are some tips___(26)____ choosing an ideal one from a number of colleges. 1. Visit the websites of these colleges and find out which college has departments courses that interest you or will help you prepare for your future career. 2. Are the professors in the departments you plan to 3. Do the colleges allow you to participate in activities intellectually and emotionally? I hope the (30) 21. (A) In 22. (A) as 23. (A) thus 24. (A) many 第3頁 共7頁 25. (A) no 26. (A) of 27. (A) offer advice is helpful to you in selecting the right college. (B) By (B) too (B) just (B) even _(27) (28) into experts in their own fields? (29)_____ will help you develop yourself (B) all (B) on (B) offers (C) With (C) still (C) so (C) other (C) some (C) to (C) offered (D) At (D) quite (D) yet (D) few (D) any (D) from (D) offering - 2 - 91學年度 英文考科

想要請問標螢光黃的部分 這一句詳解的翻譯是 「年輕遊客將會“獲得更多”，如果將注意力集中在不超過九件物品。」 想問的是這裡的get out of是翻成什麼意思 我想說get out of不是比較負面的意思像擺脫…嗎？ 非常感謝！🙏🏼

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😭為什麼分子間引力相似 體積就可以加成？

保守力和非传 ② 氣體動力論 × highscope.ch.ntu.edu.tw/wordpress/?p=4470 自主學習專區 | ...... s wox 免費網站 | 專業網.. 氣體動力論長 3-2觀念03 A Anagram Crosswo.... 國立中央大學 x 1 (Later X Tips for Cop x 溶液的蒸汽壓 普通物理學-嘉大 edX|Free Online.... The Particle Adven... Apple Podcast Co.... + G SoundOn Hosting... 就像符合理想氣體方程式的氣體稱之為「理想氣體」一樣,溶 液的蒸汽壓符合拉午耳定律的溶液稱為「理想溶液(Ideal solution)」 理想溶液中的分子之間的引力相似,不論是溶 質 - 溶質、溶劑 - 溶劑或溶質 - 溶劑間的引力。因此溶液的體 - 積具有加成性,符合1 + 1 = 2原則,不因溶劑 - 溶質間吸引力 不同而出現1+1不等於2的情形。也因為分子間的引力相近 混合時無能量改變,理想溶液在混合時沒有能量的變化,不會 吸熱或放熱。譬如苯(Benzene) 與甲苯 ( Toluene)混合溶 个 a highscopech.ntu pdf highscope.ch.ntu pdf a highscope.ch.ntu pdf a highscope.ch.ntu. pdf I · x

（7）怎麼寫😅

(4) Please describe the differences between ideal gas and real gas (2%) (5) In Van der Waals equation of state, please describe the meaning of parameter "a" and "b" briefly.(4%) (6) Please define Gibbs free energy (G), state the limiting factors and the meaning of Gibbs free energy [3%] (7) According to (4). Please provide two possible forms of energy that might affect the Gibbs free energy of a system. [2%]

第四小題，旁邊一張是別人的答案，但理想氣體的壓力不是比真實氣體的壓力低嗎？他是不是寫錯了

species A in the mixture at its final state. (2%) (3) Please describe Carnot's Theorem and the Third law of Thermodynar (4) Please describe the differences between ideal gas and real gas (2%) (5) In Van der Waals equation of state, please describe the meaning c briefly.(4%) (6) Please define Gibbs free energy (G), state the limiting factors and energy [3%]

第二小題這樣寫對吧？

(1) Please write down the energy balance equations (2) The initial state of an ideal gas mixture was 500K, and 30 bars. Next, the temperature was reduced to 300K. Assume that the mole fraction of A was 40%, Please calculate the partial pressure of species A in the mixture at its final state. (2%) (3) Please describe Carnot's Theorem and the Third law of Thermodynamics and. (2%) (4) Please describe the differences between ideal gas and real gas (2%) (5) In Van der Waals equation of state, please describe the meaning of parameter "a" and "b" 100

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for an ideal conductor; (D) All; (E) None. A conductor has a surface charge density o C/m². The force per unit area on the surface is (A) 0; (B) σ²/2 80 N/m²; (C) o²/ɛo N/m²; (D) 20² /ɛo N/m²; (E) None.