I have felt it to be essential that the newer material that is added be presented in reasonable depth so that the same demands can be made on the s tudent as with the traditional topics. T h e effort has been to avoid letting physical chemistry become a descriptive course in which the s tudent is asked to accept the results of advanced t rea tments bu t is not afforded the basis for being critical of them. T h e order as well as the philosophy of presenta t ion of material in this text deserves some explanation. A n immediate problem is that which arises from the presence of two aspects of modern physical chemistry.
This is the classical aspect ; the traditional textbook devoted itself almost exclusively to it.
Review of Physical Chemistry: A Modern Introduction, 2nd Edition | Journal of Chemical Education
T h e second aspect is molecular and theoretical , exemplified by statistical ther- modynamics and wave mechanics. T h e contemporary course gives about equal emphasis to these two main streams of physical chemistry, but there are differ- ences of opinion as to their best order of presentat ion and the various existing texts differ noticeably in this respect. To be blunt, the choice has seemed to be whether to cover wave mechanics in the first or in the second half of the book.
On the one hand, the theoretical approach provides great insight and it may therefore seem proper that it precede the classical material.
On the other hand, phenomenology comprises that which we know as scientific, that is , experi- mental t ruth. It seems logical, for example , that the great concepts of ther- modynamics precede theories about molecular details. An important practical point is that the macroscopic approach provides an entree to physical chemis- try which is easier on the student than is an initial burst of wave mechanics.
T h e scientific maturity of students increases noticeably during the year course in physical chemistry and wave mechanics is a difficult subject. I have adopted an order of presentat ion which a t tempts to be responsive to each of the above considerat ions.
T h e first half of the book follows the general macroscopic s t ream, but with a great deal of the molecular approach presented at the same time. Thus Chapter 2 on kinetic molecular theory follows the opening one on gases; and Chapte r 2 introduces the Boltzmann principle. We would like to ask you for a moment of your time to fill in a short questionnaire, at the end of your visit. If you decide to participate, a new browser tab will open so you can complete the survey after you have completed your visit to this website.
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Next lesson. Current timeTotal duration Video transcript Here some picture of what most people associate when they think of chemistry. They think of scientists working on a bench with the different vials of different chemicals. They might think of a mad scientist. Some of them boiling and changing colors. They might associate chemistry with chemical equations. Thinking about how different things will react together to form other things. They might think about models of the different molecules that can be depicted different ways.
They might associate it with the periodic table of elements.
And all of these things are a big part of chemistry. But I want you to do in this video is appreciate what at its essence chemistry is all about. And chemistry is one of the sciences that really just helps us understand and make models and make predictions about our reality.
And even something like the periodic table of elements, which you'll see at the front of any chemistry classroom, you take it for granted. But this is the product of, frankly, thousands of years of human beings trying to get to an understanding of all of the different complexity in the world. If you look at the world around us, and it doesn't even have to be our planet, it could be the universe around us, you see all these different substances that seem to be different in certain ways.
You see things like fire and rock and water.
Physical Chemistry: A Modern Introduction
Even in the planets, you see meteorological patterns. In life, you see all of this complexity and all of these different things and it looks like there's just like a infinite spectrum of differentness out of there. Of different substances. Even in things like our human brain. The complexity and the electrochemical interactions. And you could imagine as a species, this is kind of overwhelming. How do you make the sense of all of this?
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And it was not an easy path, but over thousands of years, we did start to make sense of it. And why it's very lucky for all of us to be born when we are now or to be around when we are now. To be able to learn chemistry where we are now is that we get the answer. And it's a partial answer, which is also exciting, cause we don't want the full answer. But it's a partial answer that takes us a long way.
We realize that the periodic table of elements, that all of this complexity that we're seeing before, that at the end of the day, things are made of basic building blocks.