化学の蒸気圧についての質問です この解説の最後にある｢よって"状態ア"と"状態ウ"について｣の部分にある物質量が変化しない理由って元々のmol比である977:36.0に変化が加わっていないからですか？ 逆にどのようなときに物質量は変化するんですか？ なんとなく理解ができ... 続きを読む

これ だけ で 8 ★★★ 合格決 をめ る 問題 [蒸気圧] ある反応によって生じた水素を水上置換により容器に捕集した。 この容 気体を捕集したときの温度は27℃で外気の圧力は1013hPaであった。 液 器は、容積を変えることで圧力をかきの気の圧等はく保つことができ 体を含まないように気体を容器に密閉し, 温度を27℃で一定に保ったま ま、外気の圧力を変化させて容積の変化を測定した。 外気が506.5hPaのときの容積 は、外気が4052hPaのときの容積の何倍か。 解答は小数点以下第2位を四捨五入し て示せ。ただし、気体はすべて理想気体としてふるまうものとし、 27℃における水 の蒸気圧は36.0hPa とする。 (解説) 27°C 27C Pin20 P V,T:- Hz。 + H2O 状態ア) で分ける V₁L V.L とする 。Hz 136×1 27°C 506.5hPa ●H2O VL とする ①より H2 とH2Oのmol比がわかっているので, P.Ho=506.5x- 全圧 36.0 977+36.0 結局, 次のようになっている。 =18.0hPa <36.0hPa 27℃における水の蒸気圧 モル分率 よって H2O は全て気体として存在し, その分圧は18.0hPa とわかる。 (1気圧 全圧からH2Oの分圧を引いて求める 3hPa [東京工大] 全圧506.5hPa 分圧(506.5-18.0)hPa 27℃℃ 分圧 18.0hPa 27℃℃ 27°C H2O H2 V,T: 一定 で分ける Hz。 + V₁L ◆状態ア V.L mmt H2O V.L STEP 3 水素H2のような水に溶けにくい気体を発生させたときは, 水上置換で集 める。このとき、容器内はH2とH2Oの混合気体になっている。 wwwwwwwwwwwwww wwwwww 図のように, 容器内の水面と外の水面を一致させることで, 容器内と外 気の圧力を等しく保つことができる。 27℃における水の蒸気圧つまり分圧が36.0hPa wwwwwwwwwwwwwwwwwwwwwwww であることを意識して, V. T: 一定で分けてみる。 (2)外気の圧力を4052hPaにした場合 H2Oが全て気体であると仮定すれば･･･ STEP4 PifH20 4052hPa 27°C 27℃℃ 状態イ H2O 27°C 27℃ 27°C STEP 3 状態Ⅱ 27°C V, T:- H2° + 容器の中で H2O ●H2O で分ける V2L V2L とする 一部水が液 VL と変わらな 化したときとする。 【い状態 。外気の圧力 |1013hPa H2 H2O V2L H2 • STEP3 状態 H2 V, T. 一定 VL で分ける する。 VL + H2Old 蒸気圧 全圧1013hPa V,T : 一定で分けたときは,圧力を足すことができるので 1013hPa=PH+PHO PHo=36.0hPaなので, PHを求めることができる。 Ph=1013-Pho=1013-36.0=977hPa また,V,T: 一定で分けたときは, 「圧力比=mol比」 なので NHƯ PHO PH Pho=977:36.0 … となる。 次に、液体を含まないように気体を容器に密閉する。 |を示すね ①より, 36.0 分圧PH2 分圧PH20=36.0hPa Pit. Ho=4052× 全圧 977+36.0_ モル分率 -=144hPa > 36.0hPa 27℃における水の蒸気圧 よって, H2O は一部液化し,その分圧は36.0hPa となる。 実際は,次のようになっていた。 全圧からH2Oの分圧を引いて求める 4052hPa (4052-36.0)hPa 36.0hPa 27°C 27°C 27°C V₂L H2O とする H2 V, T:- で分ける H2。 + 状態ウ V3L V3L H2O 。 STEP3 D 気体だけを H2O 27℃で外気の圧力を変化させて容積の変化を測定 密閉する . H2 する。 (1) 外気の圧力を506.5hPaにした場合 H2Oが全て気体であると仮定すれば･･･ STEP 4 40 よって状態アと状態ウのH2について, 物質量 (mol), 温度, 気体定数Rが変化し ていないので,PV=nRT (○は一定を表す) となりボイルの法則が成り立つ。 wwwwwwww →新しく得られた式PV=(一定) PV=(506.5-18.0) xV=(4052-36.0) xV3 よって, Vi=8.22V3≒8.2V3 解答 8.2倍 (

1枚目の写真のTask1を参考に Task2でメールの返信を考える問題です🙇‍♀️ 2枚目に私が書いたものがあるので文法や単語ミスがないか添削してほしいです 3枚目に評価する時に先生がよく見てるところを貼ってるので参考にしていただけると幸いです すみませんがよろしくお願いし... 続きを読む

Task 1 Your friend is coming to visit. He has questions about shopping. Write his questions on the right. FROM: Hello! I can't wait to see you next month. I have a few questions about your country. I would like to go shopping during my visit. I need electronics, clothes, and books. to Wherecommend I go? What are the you cheapest places to To to buy these things? What are the most reliable places? Are there good sales in your country this time of year? Are the stores very crowded? Any advice would help 混雑 me a lot. Thanks! クラウド His questions Where should I go to buy some electronics, clothes, and books? what are the cheapest place to buy these things? (what are the most reliable places / Are there good sales in your country this time of year? Are the stores very crowded? Leo Task 2 Write a reply letter of 80-120 words. Use some of the words and phrases in the box below. 平日OK bargains/suggest/selection/price/convenient/sales/discounts/crowded

15年の内で私が京都を訪れる最初の時だという文には完了が使えるのに15年の内で初めて京都を訪れているという文には完了系が使えないのですか？違いが分からないので教えて頂きたいです。よろしくお願いいたします。

・「京都は15年ぶりなんです」 悩む velmi hot Jaysb we] [txen Jasq] las ・「最後に京都を訪れて以来, 15年である」 ・It is(has been fifteen years • Fifteen years have passed since I • was last in • last visited文 Kyoto last came toldjob asrt noislugoqed 1.0.0 - 補語に ならない Mである!! . ・「これは15年のうちで私が京都を訪れる最初の時だ」 This is to the first time x for the first time . last stayed in NAT (NU) Oni (lo on | Kyoto the fifteen years ⚫ I've been to [in] I've visited [come to / stayed in]] aldiazoq ai I haven't visited 「私は15年間京都を訪れていなかった」 ・「これは15年のうちで京都への最初の旅行 [訪問] だ 」 = This is my first trip [visit] to Kyoto in for [in] fifteen years. for xie すべての中で fifteen years × time to come ← 〈This is one's first +行為名詞~〉を用いる! 「私は15年のうちで初めて京都を訪れている」 ertime seri Dangliest art ・I'm visiting [staying in] Kyoto 10 for the first x visit 性 | x I have been to [in] 1x first in fifteen years まず第一の意味 「行ってきたところだ」 という〈完了〉のニュアンスになってしまう!

英検2級英作文 添削お願い致します🙇‍♀️

* I don't think so. I have two reasons. First, living with their family makes them happy because they can share their feelings. By doing so, they are able to relax and be fine. It is so amazing. Second, they can help them every day. It is a good opportunity to thank parents, Parents raise us hard When we are child. Now, it is a turn to help parents a lot. Therefore, I believe many young people live with their parents and help them.

英検2級英作文 添削お願い致します🙇‍♀️

I agree this idea. I have two reasons. First, doing volunteer work improve Student's skill because they can learn many things such as repairing house, cleaning town, and so on. It will be a nice experience for them. Second, they can learn many things. For example, importance of helping each other and pleasure of making people happy. I think it is amazing and will help them in the future. Therefore, I hope a lot of high school Students do volunteer work and help many people in need.

英検2級 英作文 添削お願い致します🙇‍♀️ お題は、観光客が旅行前にその国の言語を学ぶことについてどう思うか？です。

* I think it is a good idea for tourists. I have two reasons. First, it helps. people speak easily. If they don't know the language of that country, they can't ask how to get destination and can't order at the restaurant. It cause some problem. But unless they use this language, their trip will be more cheerful Second, they can get the chance to talk with local people during the trip. I think communicate with them will be great experience. They will teach us about culture, history, and so on. It's so amazing!

英検2級 英作文 添削お願いします😿 お題は年賀状という週間は良いと思うか？です。

car communicate with In my opinion, it is a good habit to send pengajo. I have two reasons. First! We can built a nice friendship. Even if we feel grateful, it is difficult to tell it directly. But nengajo will solve this problem. Second, we friends who live far away from. We don't have to go far away Can Save a lot of time each other. It's a mutual advantage. Therefore, I want to protect this great tradition. 1 so, we

これにS(主語),V(動詞)をつけてくれませんか😭😭

16 D 15 2 of 900 woyob woH Moli linakalipid or ou Some parents do not like the idea of But in fact, pets may be good for Many children want to have a pet. having a dog or a cat in the house. children. A pet is something to play with. So keeping a pet can be especially important if there is only one child in the family. Also, children can learn a lot of things from a pet. They can learn about animals and the natural world. Children are also able to learn about taking care of a living creature. They have to learn to look after their pets in their daily life. This is an important experience for all children. stil ylish Cats and dogs are both popular pets. To tell the truth, I think cats are better for several reasons. First, cats are cleaner than dogs. They clean and they will not make the house dirty. Second, cats are safer. I junde bey stay very 10 Dogs sometimes bite people, but cats almost never do. And finally, cats are easier een to take care of. You do not have to spend much time with a cat, because many cats like to be left alone. What do you think? es/Tokyo/been/many/to/have). TERES

この英文の添削をお願いします🙇

Expressing Post-reading Activity Express your opinions on one of the following questions in more than 50 words. Questions A. Which do you think is better, living with only a few things or with a lot of things? B. Where can you find an example of the "less is more" principle around you? C. Any other ideas? Expressions 【比較する】 Compared to ~,... (~と比べると...) ~ is similar to ... (~は...と類似している) For me, ~ is better. (私にとっては〜のほうがよりよい) 心を整えることができる。 I think living with only a few things is better. There are some benefit from organized. get unnecessary information and reduce our stress. Study work and so on room. First, because we, will not Second, we can concentrate on we can prepare our mind ¥30 compared to live with To live with a lot of lot, things. Moreover, motivation for them increases. Third, can be expected good luck. Someone understand It can "60" these benefit, but they cannot arrange the room member of them. However, I'm a our behavior can change from a small action. We will be happier if we can change

この選択であっているのかそしてなぜほかの答えではダメなのか教えていただきたいです。

Education Text Completion Select the best answer to complete the text. Then choose the letter (A), (B), (C), or (D). Questions 9-12 refer to the following web page. Part 5 Incomplete Sentences Select the best answer to complete the sentence. Then choose the letter (A), (B), (C), or (D). 1. Before ------- Japan, all international students must get a student visa. (A) enter (B) entering (C) to enter (D) have entered ------- in psychology in university, but now he is an artist. 2. He A majored (A) hers (B) studied (B) she 3. Mr. Toda helped Cathy describe 4. It has been 15 years since I graduated (A) on (B) in 5. Library accounts are automatically created, so no ------- LVU Campus Tours The students of Las Vegas University are at the heart of the LVU experience, 9. tour our campus, meet LVU students, and have them guide you on a campus tour. You can enjoy a candid conversation with 10. students, ask them about classes, housing, Las Vegas, online student support, and more. 11. Doing this will hopefully give you the best idea of what LVU life would be like for you. The two-hour campus tour allows you to experience firsthand everything you need to know. Click here for your guided tour. (C) researched (D) took research plan. (C) her (D) herself ------- university. (C) at (D) from registration is 9. (A) so 10. (A) now (B) then (B) modern (C) initials (D) initialed 12. (C) also (C) latest (D) and (D) current necessary. (A) initially (B) initial 6. I'm happy to have this ------- to study with such great professors. (A) notice (B) benefit (C) factor 7. Statistics is a ------- class for second-year students. (A) require (B) required (C) requiring 8. The geologists plan to study the soil from the mountains Dopportunity (D) requires ------- Canberra. 11. A We will match you with a guide based on your interests and goals. (B) Feel free to ask about other universities found in the area. (C) Take the time to learn more about the city of Las Vegas online. (D) Please let us know the kind of person you were in high school. 12. (A) arrange (B) to arrange Carranging (D) arrangement (A) out (B) next (C) onto (D) around