How to revise for the college physical chemistry exam?

Look at your teacher's lecture notes A better way is to look for previous exam questions.

Do more questions and understand what you have done.

Looking at the exercises at the back of the textbook, most of the exam questions come from inside.

The frequently asked questions about the physical chemistry retest are:1.Types of catalysis and classification and examples of catalysts.

2.Three theoretical foundations of materialization.

3.Speed control steps.

4.Balance issues.

5.Statistical thermodynamic problems.

6.The problem of the most generalized distribution and balanced distribution.

7.How to open a cylinder.

8.Is a zero-order reaction a meta-reaction.

9.What is blackbody radiation.

10.Physical adsorption can not be monolayer.

11.Black hole.

12.Some knowledge of kinetics.

13.Compact layer and diffusion layer.

14.The surface is stretched next to hail force, moist or wet interpretation.

15.Difference Between Physical Adsorption and Chemical Adsorption.

16.Kerker's equation.

17.The principle of catalysts.

18.Saturated vapor pressure.

19.Analyze hydrophilicity and hydrophobicity.

20.Compressed gas requires an environment.

21.The content of analytical chemistry, as well as the characteristics and applications of various instruments.

Physical Chemistry:It is developed on the basis of two major disciplines: physics and chemistry. It takes a wealth of chemical phenomena and systems as the object, a large number of theoretical achievements and experimental techniques of physics, and explores, inducts and researches the basic laws and theories of chemistry, which constitutes the theoretical foundation of chemical science.

The level of physical chemistry reflects to a considerable extent the depth of the development of chemistry.

Judging from the course name, your analytical chemistry should be a traditional chemical analysis category, that is, the four major titrations and some side knowledge points.

The acid-base titration of the four major titrations is the most important, and many of our students have poor grades, and many of them are in this chapter. In this chapter, these knowledge points should be grasped well: the self-transmission constant of water, the conjugated acid-base theory, the acid-base equilibrium theory, the distribution fraction of the type, the proton equilibrium, the pH calculation of the univariate weak acid and weak base, the pH calculation of amphoteric substances, the pH calculation of buffer solution, the discoloration point and the discoloration range of the indicator, the titration jump, the pH calculation of the measurement point, etc.

On this basis, a rational systematization is carried out: this chapter is simply the calculation of the pH of different systems and the calculation of different acid-base metering points and titration jumps. When you are calculating these two types of questions, you can basically use all the knowledge points.

With the most systematic titration, remember two formulas, one is the formula of the conditional stability constant k my=kmy (m y), which requires that the composition of m y in it will be analyzed; One is the calculation of the concentration of metal ions at the measurement point [m]=cm 2k my), and this formula is also used in the previous formula. A little more is the condition for the accurate titration of metal ions, divided into single ions and mixed ions, mixed ion titration is the most interesting, summed up is that if the stability constant of the two ions meets the LGΔK 5, then control the acidity titration, and if it is not satisfied, find a way to reduce the concentration of interfering ions, which is called the masking method.

Redox titration is the most boring, your teacher may talk more deeply, but the exam will be easier, nothing more than to find the content of a certain metal, COD, BOD, etc., according to the redox equation, as well as the formula to judge whether a redox reaction is easy to carry out.

The final precipitation titration remembers the Morfa and Verhard methods.

Materialization is still relatively easy to learn, of course, only if you have studied professional courses will you know the simplicity of materialization.

First of all, listen carefully in class, and be sure to take careful notes, even in the book, so that you can focus on the review.

Secondly, the library borrowed the materialized after-class answer tutorial book, although the homework questions left by the teacher are very few, but they are all classic, they are type questions, and as long as you are not an excellent college student in 211, then the big questions in the exam questions must be homework questions;

Usually prepare a blank sheet of paper when reviewing by yourself, write a good knowledge framework and key formulas, and then fill in the key points.

Finally, two weeks before the exam, I read the knowledge framework, then take notes in class, and finally practice after class. If you have spare time, you usually do typical questions in the tutorial book.

In fact, it is much easier to get into college than in high school. Have faith in yourself and you feel that you can learn well in order to learn well.

When you enter physical chemistry in a college chemistry course, you should pay attention to the difference between physical chemistry and the courses you have studied before.

1. In the physical chemistry course, the focus of attention is no longer on the mechanism, properties and reactions of molecules. What you have learned about molecules and their reactions is to be put aside for the time being.

2. Physical chemistry is the discipline that is the most used in mathematical derivation among all disciplines of chemistry, has the strongest theory, and can most quantitatively and deeply study the nature of matter and the essence of chemical reactions. Physical chemistry is one of the most important basic courses for students who are interested in continuing to study the structure of matter, quantum chemistry, catalytic chemistry, surface chemistry and electrochemistry in the future.

3. As for the learning method, it is based on the empirical chemical experiments, introduces the method of physical research, starts from the basic laws of nature, and gives more rigorous formulas or laws.

4. It is required to be familiar with the way of thinking of mathematics and physics, and the foundation is also higher. However, physical chemistry is not the study of physics, but the study of the internal structure of matter and the specific process of chemical reactions, with the focus on chemistry.

The day before class, be sure to take time to consciously preview what the teacher will talk about the next day. Learn to study first and then listen to the lectures. The benefits of pre-study are numerous:

1) It can strengthen the pertinence of lectures, help to find problems, grasp the key points and difficulties, and improve the efficiency of lectures;

2) It can improve the level of taking lecture notes, know what to remember, what not to remember, what to remember, and what to remember;

3) It saves time for reviewing and doing homework after class. Through independent thinking during preview and deep impression left by listening to lectures, the time for review and homework after class is shortened;

4) It can develop self-learning skills. The process of pre-study is the process of self-consciousness or independent thinking, and long-term persistence will definitely improve the self-learning ability.

The method of pre-study is:

1) Read through the text. By reading the text, understand the basic content and key points of the new lesson, write down the questions you don't understand or make some marks in the book with a pencil, so as to remind yourself to concentrate and pay attention in class, listen to the teacher consciously and purposefully, and compare in detail what is different from your own ideas, so that you can achieve good learning results;

2) Clear the way. On the basis of understanding the main content after reading the text, we should review and make up for it in time if we have forgotten it, so that we can connect the old and new knowledge, bring the new with the new, and learn the new from the old.

3) Identify key points, difficulties and doubts. After reading through the text and clearing the relevant obstacles, on the basis of understanding the new knowledge, think about the exercises behind the text, try to solve them, and find out the key points, difficulties and doubts of the new lesson in the process. If you have potential, you can also take some pre-study notes.

Systematic learning approach.

First, the fundamental law of learning - clear thinking.

1. Simple learning - focusing on the learning of knowledge points - understanding, memorization, and practice;

2. Systematic learning - induction and summary - skeleton, sorting and enrichment;

Complete learning is a combination of 1 and 2.

2. How to use the fundamental laws to learn:

1. Problems: many knowledge points and a wide range of knowledge;

2. Problem solving process: the process of establishing the connection between various knowledge points;

3. Unable to solve the problem: breakpoint;

4. To learn systematically: there is an overall game of chess in mind;

3. How to Conduct Systematic Learning:

1. Establish a knowledge framework;

2. Fill the skeleton with flesh and blood;

3. Find out the connection between the vertical and horizontal directions of each part.

Fourth, the complete process of systematic learning:

1. Draw a complete knowledge structure diagram;

2. Connect the knowledge points in this diagram with the specific learning content (fill in the flesh);

3. Transplant this interconnected knowledge system into the brain as a whole.

University Physics is a book published by Tsinghua University Press in 2012, and the authors are Ye Weiguo and Yu Guoxiang. The book deals with the basic laws and concepts of physics.

I would like to introduce you to the learning method of Li Xiaopeng, the top student in the college entrance examination, and don't take a try.

Systematic learning approach.

First, the fundamental law of learning - clear thinking.

1. Simple learning - focusing on the learning of knowledge points - understanding, memorization, and practice;

2. Systematic learning - induction and summary - skeleton, sorting and enrichment;

Complete learning is a combination of 1 and 2.

2. How to use the fundamental laws to learn:

1. Problems: many knowledge points and a wide range of knowledge;

2. Problem solving process: the process of establishing the connection between various knowledge points;

3. Unable to solve the problem: breakpoint;

4. To learn systematically: there is an overall game of chess in mind;

3. How to Conduct Systematic Learning:

1. Establish a knowledge framework;

2. Fill the skeleton with flesh and blood;

3. Find out the connection between the vertical and horizontal directions of each part.

Fourth, the complete process of systematic learning:

1. Draw a complete knowledge structure diagram;

2. Connect the knowledge points in this diagram with the specific learning content (fill in the flesh);

3. Transplant this interconnected knowledge system into the brain as a whole.

Unless it's your own major, you don't have to learn so well, if you want to get a national scholarship, just study it seriously Knowledge points + practice questions.

Do more exercises to summarize the formulas and the conditions for their use.

Do more questions, memorize more theorems, and everything else is.

The exams of college physics are all in books, it is best to know the exercises that the teacher asked you to do, as well as the example questions in the book, I am now a senior in college, and we studied chemistry and physics in my freshman and sophomore year, which seems difficult, but in fact, they are all in books, or some of the last exams.

It is still necessary to do more exercises and experiment more to summarize.

1. Review according to the range given by the teacher, generally the teacher will give the scope of review, you just need to review according to the system.

2. If you don't give a review scope, you should review step by chapter, understand the example questions in the book, and strengthen your grasp of the definition of formulas. If you can't, ask the teacher in time.

3. If you didn't listen to the class well in the early stage, you can use the method of checking and filling in the gaps to learn, find the same example questions, practice more, and strive to master one question is one question.

Review Method:

1. Take the textbook as the foundation, take the syllabus as the outline, and eat the textbook thoroughly. The exam questions must be based on the specified textbook, not the teaching materials of a certain publishing house. Almost 100% of the usual exam questions can be found in textbooks – of course, after multiple layers of synthesis and deepening.

2. Write the book three times. The first time should be based on the overall browsing, and strive to understand the summary of the whole book, and do not require understanding of each specific knowledge point; The second time to carefully sort out the key and difficult points; The third time is to reorganize and memorize the knowledge points. After doing this three times, the book is basically read.

3. The book is almost finished, and the knowledge system is sorted out, so let's start working on the questions. We must grasp a principle when doing questions: first seek refinement, and then seek more; Seek slow first, then seek fast; Seek quality first, then quantity.

4. Memorize the topic. The so-called memorization is a more vivid statement, which does not mean that you must memorize the entire topic. Instead, after doing it, put the workbook that I had done. The test papers and so on are saved and taken out at regular intervals in the future.

The first is to summarize the knowledge points according to the teacher's lessons and review.

Second, it is also the unchanging truth, brush the questions and brush the questions.

As for the physics exam, it's the same everywhere.

The mechanical energy of the oscillator e=e. And e=2 for the spring oscillator that determines the stiffness coefficient, e c a, and a is the amplitude of the oscillator, so the amplitude of the amplitude determines the mechanical energy of the oscillator.

So the second option is D

Question No. 1?

The main thing to look at is that the x1 amplitude is 6

The period is 4, so choose B

Can you please give me a thumbs up 3

It's hard for you to take the exam, anyway, I haven't been admitted to college, and I don't know.