2023年11月06日

高校化学「電池と電気分解」燃料電池の電気量や効率@

高校化学「電池と電気分解」燃料電池の電気量や効率@

◆問題

水素の燃焼反応を利用したいわゆる燃料電池を1.93×105秒間稼働させたところ、液体の水が36.0g生成した。電極間を流れた電圧は1.00V,ファラデー定数を9.65×104として、次の問いに答えよ。

(1) 回路を流れた電子の物質量を求めよ。


解答解説はこのページ下


★★ お知らせ ★★

AE個別学習室(えまじゅく)水戸教室では、学校の授業の補習、定期テスト対策だけでなく、「大学入試共通テスト」の対策授業を行っています。
従来のセンター試験や試行テストの内容を踏まえて、理系文系全科目の指導が可能です。
マンツーマンの授業なので「ゼロからのスタートの人は中学の復習から」「基本ができている人は応用問題の解き方中心に」など、ひとりひとりの状況に合わせて授業を行います。
適切な時期に適切な対策をすれば、どんな目標でも達成可能です。志望校を諦める前に、まずは一度ご相談ください。

◆解答解説

燃料電池の正極・負極それぞれでの反応式は、

正極:O2+4H++4e-→2H2O
負極:H2→2H++2e-

このようになります。
ということは、電子が2mol流れると、水が1mol生成されます。

今回の問題では、水が36g生成されました。
H2O=18だから、36g=2molです。

ならば、流れた電子は4molですね。
解答は、有効数字を3桁として、4.00molとなります。


次の問題→平均電流とエネルギー


◆関連問題
用語と基本的な構造→ボルタ電池ダニエル電池鉛蓄電池マンガン電池燃料電池
電池・電気分解まとめ


−−−−−−−−−−−−−−−−−−−−−−−−−−−−−
 20年以上の実績。全学年、英・数・理をはじめ全教科対応
  最高級の指導を提供します!メール添削も好評です!

プロ家庭教師の江間です。    AE個別学習室(えまじゅく)
http://www.a-ema.com/k/     http://www.a-ema.com/j/
−−−−−−−−−−−−−−−−−−−−−−−−−−−−−
posted by えま at 21:00| Comment(0) | TrackBack(0) | 高校化学 | このブログの読者になる | 更新情報をチェックする

本日配信のメルマガ。2023年共通テスト追試英語第5問 完成

本日配信のメルマガでは、2023年大学入試共通テスト追試英語第5問の最後までの内容を掲載します。


【高校英語】共通テストの英文解釈
http://www.mag2.com/m/0001641009.html


■ 問題

2023年大学入試共通テスト追試より

第5問

Your English teacher has told everyone in your class to choose a short
story in English to read. You will introduce the following story to your
classmates, using a worksheet.


Becoming an Artist

Lucy smiled in anticipation. In a moment she would walk onto the stage and
receive her prize from the mayor and the judges of the drawing contest. The
microphone screeched and then came the mayor’s announcement. “And the
winner of the drawing contest is… Robert McGinnis! Congratulations!”

Lucy stood up, still smiling. Then, her face blazing red with embarrassment,
abruptly sat down again. What? There must be a mistake! But the boy named
Robert McGinnis was already on the stage, shaking hands with the mayor and
accepting the prize. She glanced at her parents, her eyes filled with tears
of disappointment. They had expected her to do well, especially her father.
"Oh Daddy, I'm sorry I didn't win," she whispered.

Lucy had enjoyed drawing since she was a little girl. She did her first
drawing of her father when she was in kindergarten. Although it was only
a child's drawing, it really looked like him. He was delighted, and, from
that day, Lucy spent many happy hours drawing pictures to give to Mommy and
Daddy.

As she got older, her parents continued to encourage her. Her mother,
a busy translator, was happy that her daughter was doing something creative.
Her father bought her art books. He was no artist himself, but sometimes
gave her advice, suggesting that she look very carefully at what she was
drawing and copy as accurately as possible. Lucy tried hard, wanting to
improve her technique and please her father.

It had been Lucy's idea to enter the town drawing contest. She thought that
if she won, her artistic ability would be recognized. She practiced every
evening after school. She also spent all her weekends working quietly on her
drawings, copying her subjects as carefully as she could.

Her failure to do well came as a great shock. She had worked so hard and her
parents had been so supportive. Her father, however, was puzzled. Why did
Lucy apologize at the end of the contest? There was no need to do so. Later,
Lucy asked him why she had failed to win the competition. He answered
sympathetically, "To me, your drawing was perfect." Then he smiled, and
added, "But perhaps you should talk to your mother. She understands art
better than I do."

Her mother was thoughtful. She wanted to give Lucy advice without damaging
her daughter's self-esteem. "Your drawing was good," she told her, "but I
think it lacked something. I think you only drew what you could see. When I
translate a novel, I need to capture not only the meaning, but also the
spirit of the original. To do that, I need to consider the meaning behind
the words. Perhaps drawing is the same; you need to look under the surface."

Lucy continued to draw, but her art left her feeling unsatisfied. She
couldn't understand what her mother meant. What was wrong with drawing what
she could see? What else could she do?

Around this time, Lucy became friends with a girl called Cathy. They became
close friends and Lucy grew to appreciate her for her kindness and humorous
personality. Cathy often made Lucy laugh, telling jokes, saying ridiculous
things, and making funny faces. One afternoon, Cathy had such a funny
expression on her face that Lucy felt she had to draw it. "Hold that pose!"
she told Cathy, laughing. She drew quickly, enjoying her friend's expression
so much that she didn't really think about what she was doing.

When Lucy entered art college three years later, she still had that sketch.
It had caught Cathy exactly, not only her odd expression but also her
friend's kindness and her sense of humor- the things that are found under
the surface.


Your worksheet:

1. Story title
"Becoming an Artist"

2. People in the story
Lucy: She loves to draw.
Lucy's father: He [ 30 ].
Lucy's mother: She is a translator and supports Lucy.
Cathy: She becomes Lucy's close friend.

3. What the story is about
Lucy's growth as an artist:
[ 31 ]
[ 32 ]
[ 33 ]
[ 34 ]
Her drawing improves thanks to [ 35 ] and [ 36 ].


4. My favorite part of the story
When the result of the contest is announced, Lucy says, "Oh Daddy, I'm
sorry I didn't win."
This shows that Lucy [ 37 ].

5. Why I chose this story
Because I want to be a voice actor and this story taught me the importance
of trying to [ 38 ] to make the characters I play seem more real.


問1 Choose the best option for [ 30 ].

{1} gives Lucy some drawing tips
{2} has Lucy make drawings of him often
{3} spends weekends drawing with Lucy
{4} wants Lucy to work as an artist

問2 Choose four out of the five descriptions ({1}〜{5}) and rearrange them
in the order they happened.[ 31 ]→[ 32 ]→[ 33 ]→[ 34 ]

{1} She becomes frustrated with her drawing.
{2} She decides not to show anyone her drawings.
{3} She draws with her feelings as well as her eyes.
{4} She has fun making drawings as gifts.
{5} She works hard to prove her talent at drawing.

問3 Choose the best two options for [ 35 ] and [ 36 ]. (The order does not
matter.)

{1} a friend she couldn't help sketching
{2} a message she got from a novel
{3} advice she received from her mother
{4} her attempt to make a friend laugh
{5} spending weekends drawing indoors.

問4 Choose the best option for [ 37 ].

{1} didn't practice as much as her father expected
{2} knew her father didn't like her entering the contest
{3} thought she should have followed her father's advice
{4} was worried she had disappointed her father

問5 Choose the best option for [ 38 ].

{1} achieve a better understanding of people
{2} analyze my own feelings more deeply
{3} describe accurately what is happening around me
{4} use different techniques depending on the situation


━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
★★★★★★★「AE個別学習室(えまじゅく)」生徒募集!★★★★★★★★
★                                 ★
★     茨城県水戸市、常陸太田市の個別指導教室         ★
★ 「AE個別学習室(えまじゅく)」では、生徒募集をしています。   ★
★ 対象は小学生・中学生・高校生・浪人生。社会人も歓迎します!   ★
★ オンライン授業も好評です!全国の生徒さんに対応可能です。    ★
★                                 ★
★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★

 えまじゅくでは、経験豊富なプロ講師のマンツーマン授業が受けられます。
 授業料が最大で40%引きになる、2人〜4人の同時指導も好評です!
 今年も何人もの生徒さんが、第一志望(以上)の結果を出してくれました。

 興味をお持ちの方は、まずは mm@a-ema.com までお問い合わせください。

 家庭教師・塾のサイトと連絡先はここ → http://www.a-ema.com/

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

■ スラッシュリーディング

Your English teacher has told everyone / in your class / to choose
/ a short story / in English / to read.
あなたの英語の先生は皆に言った / 授業で / 選ぶように
/ 短い物語を / 英語で / 読むための

You will introduce / the following story / to your classmates,
/ using a worksheet.
あなたは紹介するつもりだ / 次の物語を / クラスメートに
/ ワークシートを使って


Becoming an Artist
アーティストになる

Lucy smiled / in anticipation.
Lucyは微笑んだ / 期待して

In a moment / she would walk / onto the stage / and receive her prize
/ from the mayor / and the judges / of the drawing contest.


(以下略)


(有料版では、解説の続きも掲載しています)
 http://www.mag2.com/m/0001641009.html

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
=========================== お知らせ2 ===============================

ブログにて様々な問題を解説しています!

■ センター数学を理由の理由まで解説するブログ
   http://centermath.seesaa.net/

■ センター英語をひとつひとつ解説するブログ
   http://a-emaenglish.seesaa.net/

■ 何でも解説するブログ(塾&家庭教師ブログ)
   http://a-ema.seesaa.net/


紙の書籍、電子書籍もご利用ください。
中学・高校の英語・数学の書籍を出版しています。

★江間淳(えまあつし)の書籍一覧 → http://amzn.to/2lnKZdS

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

解説の続きは、本日21時配信予定の

【高校英語】共通テストの英文解釈
 http://www.mag2.com/m/0001641009.html

に掲載します!
全て長文問題になった大学入試共通テスト。今まで以上に読解力が求められます。
翻訳も行っている著者が、スラッシュリーディング、全文訳とともに解説します。
月・水・土配信。\550/月。初月無料です。

※追試はスラッシュリーディングのみの掲載とします。


ブログにもメルマガの記事を分割して掲載しています。

■ 共通テスト・センター英語をひとつひとつ解説するブログ
   http://a-emaenglish.seesaa.net/


━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
------------------------------------------------------------------------
          発行者 江間淳(EMA Atsushi)
 mm@a-ema.com http://www.a-ema.com/k/ https://twitter.com/A_EMA_RYU
 youtube EMA Atsushiチャンネル:https://www.youtube.com/@emajuku
------------------------------------------------------------------------
                        無断転載・引用を禁じます。

=========================== お知らせ3 ===============================

5万人以上の利用実績がある勉強アプリ。英語・数学・化学など。
★印のものはGooglePlayでも公開中です。「江間淳」で検索してみてくださいね!

★【高校数学】読むだけでわかる!数学1Aの考え方
 http://pmana.jp/pc/pm586.html

【高校数学】読むだけでわかる!数学2Bの考え方
 http://pmana.jp/pc/pm743.html

【高校数学】読むだけでわかる!数学3の考え方
 http://pmana.jp/pc/pm730.html

★【高校英語】センター試験徹底トレーニング
 http://pmana.jp/pc/pm588.html

★【高校化学】読むだけでわかる!理論・無機・有機化学の考え方
 http://pmana.jp/pc/pm603.html

【高校物理】読むだけでわかる!物理基礎・物理の考え方
 http://pmana.jp/pc/pm729.html

【中学5科】高校入試の重要ポイント
 http://pmana.jp/pc/pm707.html
ラベル:英語
posted by えま at 17:00| Comment(0) | TrackBack(0) | メルマガ | このブログの読者になる | 更新情報をチェックする

日本史「第一次世界大戦と日本」大正政変@

日本史「第一次世界大戦と日本」大正政変@

◆問題

空欄に適語を入れてください。

1911年第2次西園寺公望内閣が組織された。国家財政は悪化していたが、与党の立憲政友会は積極的な財政政策を、商工業者は減税を、海軍と陸軍はそれぞれの軍備増強を求めたため、内閣は難しい立場に立たされた。1912年に(@)天皇が即位した頃、東京帝国大学教授の(A)が『憲法講話』を刊行、(B)説や政党内閣論を唱えた。一方、元老の山県有朋は、(@)天皇の内大臣兼侍従長に、桂太郎を選んだ。


解答はこのページ下


用語集ならコレ!

日本史用語集 改訂版 A・B共用


◆解答

@大正、A美濃部達吉、B天皇機関

1911年第2次西園寺公望内閣が組織された。国家財政は悪化していたが、与党の立憲政友会は積極的な財政政策を、商工業者は減税を、海軍と陸軍はそれぞれの軍備増強を求めたため、内閣は難しい立場に立たされた。1912年に大正天皇が即位した頃、東京帝国大学教授の美濃部達吉が『憲法講話』を刊行、天皇機関説や政党内閣論を唱えた。一方、元老の山県有朋は、大正天皇の内大臣兼侍従長に、桂太郎を選んだ。


前の問題→生活様式の近代化
次の問題→大正政変A


近代・現代まとめ
近世まとめ中世まとめ原始・古代まとめ


−−−−−−−−−−−−−−−−−−−−−−−−−−−−−
 20年以上の実績。全学年、英・数・理をはじめ全教科対応
  最高級の指導を提供します!メール添削も好評です!

プロ家庭教師の江間です。    AE個別学習室(えまじゅく)
http://www.a-ema.com/k/     http://www.a-ema.com/j/
−−−−−−−−−−−−−−−−−−−−−−−−−−−−−
posted by えま at 08:00| Comment(0) | TrackBack(0) | 日本史 | このブログの読者になる | 更新情報をチェックする
こんなヤツです
名前:江間淳
年齢:41
職業:プロ家庭教師、AE個別学習室(えまじゅく)代表、翻訳者
ウェブサイトURL:http://www.a-ema.com/
メールアドレス:j@a-ema.com
一言:アプリ、メルマガ、電子書籍提供中です。アマゾンやGooglePlayで「江間淳」で検索!
江間淳の書籍一覧 → http://amzn.to/2m9LTvN