Chapter 425 Chen Pingan

A loud voice sounded in the classroom.

"The establishment of chemical equilibrium: under certain conditions, the state when the positive and negative reaction rates of a reversible chemical reaction are equal."

"Chemical equilibrium has three major characteristics. The first characteristic is that it is a dynamic process; the second characteristic is that in equilibrium, △rG=0; the last characteristic is that the composition of chemical equilibrium and the time to reach equilibrium The path doesn’t matter.”

"However, there are things that need to be paid attention to in chemical equilibrium. Chemical equilibrium is a relative, conditional, and temporary dynamic equilibrium... Next, do students know what a chemical equilibrium constant is?"

Professor Zhai Yang does not use PPT projections in his lectures. The formal expression mainly relies on the blackboard. For subjects such as mathematics, chemistry, physics, etc., the blackboard is the best!

Formulas and calculations are soulless if they are not expressed through a blackboard!

I don’t know why, but Professor Zhai Yang feels that classes here in Guanghua are more energetic than at Luda University.

Yangyang finished the class and looked down at his watch. There were still ten minutes until get out of class ended.

"Students, since we still have some time, let's review the content of the previous class."

Zhai Yang looked around the crowd and asked with a smile: "Use everyone's favorite way of asking questions, then I will call your name."

There is no need for a roster, because there are only 24 students in the entire class.

Guanghua College adopts a general education system, with a total of 87 students in the pilot class. Course selection is generally free, but there are some restrictions. For example, it stipulates two sections of physics, two sections of mathematics, one section of biology, and one section of biology. Chemical.

This chemistry course is the "College Chemistry" course offered by him. It mainly teaches the basic principles of the four major chemistry, namely inorganic chemistry, organic chemistry, physical chemistry, and analytical chemistry.

The main purpose of general education is to strengthen students' quality education and inspire innovative thinking. Through various interdisciplinary contents, we can find majors that interest you and are in line with your own development for intensive learning.

Otherwise, what should you do if you are admitted to a computer major, but in fact the physics major is really suitable for you?

Many people will say that you should change your major!

But is changing a major something you just want to change?

Different schools have different requirements. The better the school, the more difficult it is to change majors!

For example, it is difficult to change majors at Peking University, and it is even harder to change to a popular major. The first is to score high in the final exam, which means ranking in the top 10% in professional scores at Peking University, which is full of strong players.

Only those in the top 10% of Peking University's majors can change majors...

Just think about who can get into Peking University, let alone take professional exams for popular majors like finance, management, and computer... So let’s give up this idea.

Professor Zhai Yang still very much agrees and appreciates the implementation of this unique system at Guanghua University.

A total of 24 people chose his class this semester, and they all had their names memorized after taking the class twice.

Zhai Yang glanced from left to right. Most of the students held their heads high and held their chests high. There were also a few students who shrank their necks for fear of being called.

"Song Hao."

After the words fell, a boy in a black T-shirt sitting in the third row by the window was stunned. Then he stood up with a constipated face, scratched his head, and looked a little at a loss.

Zhai Yang raised his eyelids slightly and asked: "What is the essence of the first law of thermodynamics?"

"The essence of the first law of thermodynamics is..."

Song Hao almost scratched his dandruff, but he was really not interested in chemistry, but the school also required him to take chemistry. He didn't originally plan to sign up for it in the first semester of his freshman year, but he didn't let his friends drag him along.

Zhai Yang just looked at Song Hao with a smile on his face and said nothing.

"Ha...so what is the essence..."

Song Hao's voice became lower and lower as he spoke, and his eyes looked to the side, but the other person shrugged helplessly.

There is no way, the teaching building of Guanghua College is uniquely designed. In order to facilitate teaching, the classrooms are fan-shaped, which is a lot more convenient for teaching.

The 24 people sat in four rows, and the teachers on the stage could hear this quiet reminder.

Professor Zhai Yang raised his eyebrows and said with a smile: "It seems that Song Hao may not have a good memory, so I will hand-copy the contents of the laws of thermodynamics and basic laws ten times to strengthen my memory, and give them before class next week. Am I okay?"

Song Hao looked sad and nodded reluctantly, "No, no problem."

"Then sit down." After Professor Zhai Yang finished speaking, his eyes narrowed. Someone's action just now was quite conspicuous.

"Student Song Hao has been looking at classmate Chen Pingan just now. It seems that classmate Chen Pingan should know it well, so let's answer this question."

Song Hao, who looked like his anus had been popped just now, suddenly turned from sadness to joy, looking at Chen Ping'an with gloating, grinning silently, and even winking.

Looking at the bitch Song Hao, Chen Pingan twitched the corner of his mouth, answered the question with a calm face, and quietly stepped on the bitch next to him.

“The essence of the first law of thermodynamics is the law of conservation and transformation of energy.”

Song Hao was stepped on, and he made a "hissing" sound. He was holding back the pain on his face, and he suddenly didn't dare to show off.

Professor Zhai Yang nodded and said in agreement: "That's a good answer. It seems that Chen Ping'an has been reviewing after returning. Then I will help strengthen and consolidate it."

"Then let's talk about the second and third laws of thermodynamics."

Chen Ping'an's expression did not change, he just paused for a few seconds, seeming to be recalling.

"The second law of thermodynamics reveals the direction and limits of macroscopic processes..."

With almost no pause, he answered the question completely in one breath.

I originally thought it was over, but Professor Zhai Yang smiled and spoke again.

"Okay, okay, let's go up and write down the formulas of enthalpy change and thermochemical equation. I believe this won't be a big problem for Chen Ping'an, right?"

Chen Pingan touched his nose and walked directly to the podium.

Pick up the chalk and write in a hurry.

【Enthalpy change】

[△H=H tense-H final state=△U+pV]

[Thermochemical equation]

【2H(g)+O2=2HO(g)】

Just as I finished writing, the bell rang.

Professor Zhai Yang looked at the content on the blackboard and clapped gently.

"What Chen Pingan wrote is very correct. Everyone should learn more from Chen Pingan. Today's class ends here. We will talk about acid-base balance in the next class. Please remember to spend some time in the past few days to do more previews. I still have homework to review for these two classes, let’s finish the get out of class.”

As soon as the words fell, the students who were sitting upright just packed up their textbooks and swarmed out.

Professor Zhai Yang looked at the professor who had vanished in an instant and cursed with a smile.

"Are these children monkeys?"

Outside the classroom, a group of leaving students were still discussing Professor Zhai Yang.

"I'm not saying that, among all the teachers in our college, Professor Zhai's class is the most frightening. He only has to answer questions at the slightest moment of distraction." A student complained.

"That's true, but the instructors in our college are very powerful. Professor Liang Yiqing of Semiconductor (has been appointed as a full professor), and Professor Ren of the Optical Core Research Center, all of them are better than Professor Zhai Much better!" Song Hao curled his lips and said, perhaps because he was embarrassed in class just now.

Chen Ping'an frowned slightly and couldn't help interrupting Song Hao's words.

"Old Song, you are a bit biased. Professor Zhai is a great leader in the domestic chemistry community!"

"What? I'm justified."

Song Hao glanced at Chen Ping'an with some embarrassment and said: "The traditional top four in China's chemical industry are: Peking University, Nankai University, Nankai University, and Jilin University. Jilin University alone has three national key laboratories in the School of Chemistry. Although Chemistry is at Ludao University, It’s a top professional, but it’s only among the top ten in the country, and it’s totally incomparable!”

Chen Ping'an just shook his head, "You are talking about the strength of the school's departments, which is correct in theory, but in terms of personal strength, Professor Zhai Yang was recruited by President Zhang of Ludao University from MIT. He is well-known in the country. , The status is very strong, and he is even known as Beihuang Nanzhai, the first person in chemistry in the south!”

Listening to Chen Pingan's explanation, Song Hao and others were dumbfounded. Is Professor Zhai Yang, who usually has no airs in his lectures, so powerful?

But the Zhai Yang himself mentioned by Chen Pingan had just walked out of the classroom.

Walking away from the teaching building, the students walking on the campus were far more energetic than when he first arrived at Guanghua University.

Zhai Yang was filled with emotion when he thought of the students in the class just now, especially the student named Chen Ping'an.

Another pair of students at Ludao University.

I couldn't help but sigh: "Today's young people are really amazing!"

The Chemistry Department of Ludao University was founded in 1923. During the major adjustment of the discipline in the 1950s, the lifeblood of the Chemistry Institute was not damaged. Therefore, the chemistry department of Ludao University is now quite powerful. It has 8 academicians of the two academies and ranks among the top disciplines in universities across the country. It is ranked 8th and is also an A-level subject.

However, there is a saying in Ludao University: School of Economics, School of Management, and other schools.

From this we can imagine how strong Ludao University’s economics and management is.

Even though he is ranked eighth in Chemistry, his status in the school is still somewhat embarrassing. Among other things, biochemical and environmental materials majors are red-card majors for employment, so being ranked eighth is useless!

Don't listen to some people's boasts about the wide range of jobs in chemistry. In fact, they usually go to graduate schools. However, most graduate schools start as graduate students. Even undergraduates in the chemistry department of Ludao University mostly change careers.

When the 19th graduate class of the Department of Chemistry graduated, there were a total of 217 graduates with master's and doctorate degrees, only 125 of whom had a place to go, and the rest were unemployed. This is Ludao University, which is ranked eighth among the 985 prestigious universities in chemistry. The chemistry majors of other ordinary universities... think about it. knew.

This is the dilemma for students majoring in biochemical and environmental materials. They must either study for a Ph.D. or change careers.

In addition, the Chemistry Department of Luda University allows students to change majors, which leads many undergraduates to study hard in order to change majors and escape from the sinkhole.

Here at Guanghua College, perhaps because of the unique education system, students don’t have much opinion on their majors. After all, they only choose the direction of follow-up study in their sophomore year, which makes their studies more pure.

And he discovered that among these 24 students, in terms of talent and talent...

"Principal Chen is really awesome!"

Thinking of this, Professor Zhai Yang couldn't help but look at Guanghua Building, the most conspicuous and spectacular building on campus, with admiration.

The 87 students in the experimental class of Guanghua College are undoubtedly gold found in the waves. The IQ of these students is not inferior to the students of Ludao University. The reason why they are admitted here is entirely because of their improper learning attitude. The problem.

In a university with 20,000 students, no matter how rubbish it is, it is normal for dozens of good students to emerge.

Leaving the car.

Zhai Yang looked through the rearview mirror at the final outline of Guanghua University, and had a thought in his heart.

He smiled softly, even he felt a little ridiculous.

"Perhaps it is not impossible for Guanghua University to surpass Luda University one day in the future..."

Just then, the phone rang.

The Bluetooth headset is connected.

"Principal Zhang, what's the matter?"

The joking voice of President Zhang Yue of Ludao University sounded.

"Professor Zhai, you should have finished your class at Guanghua's place now. How do you feel?"

"Do you feel it? I feel pretty good." After thinking about it, Zhai Yang said with a smile without covering up.

Principal Zhang smiled lightly and said, "Oh? That's just right. I really want to talk to Professor Zhai about Guanghua University. I don't know when it's convenient?"

Zhai Yang glanced at his watch and said directly: "Now, I just have to go to the laboratory, and then I'll go see you, Principal Zhang."

"Hahaha, okay, then I will prepare tea and wait for Professor Zhai to arrive."

The phone hangs up.

Zhai Yang turned his eyes slightly and raised the corners of his mouth slightly.

"I probably know the reason."

ps: A big chapter of 3500 words! Please vote for recommendations, please vote for me monthly!

Next chapter at 10pm.

Two of my old friends got married today.

One is named Nobi Nobita, and the other is named Minamoto Shizuka.

I went to watch "Doraemon: Stand By Me 2" in the afternoon. I was so touched. Nobita and Shizuka finally got married!

Every time I watch "Doraemon", I feel like the Nobita in it is me. When I was a child, I was also stupid. I was always bullied. I also cried a lot and wore round glasses.

The only difference is that I don’t have Doraemon (╥﹏╥)

Nobita, you must be happy! ! !

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