Clearly written treament elucidates fundamental concepts and demonstrates their plausibility and usefulness. Language is informal, examples are vivid and lively, and the perspectivie is fresh. Based on lectures delivered to engineering students, this work will also be valued by scientists, engineers, technicians, businessmen, anyone facing energy challenges of the future.
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Most Helpful Customer Reviews
53 of 54 people found the following review helpful:
5.0 out of 5 stars
Lucid Explanation of Thermodynamics - Highly Recommended,
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This review is from: Understanding Thermodynamics (Dover Books on Physics) (Paperback)
Understanding Thermodynamics is an exceptional introduction to a subtle and complex topic. The First and Second Law of Thermodynamics are seemingly trivial, and yet an understanding of theoretical and applied thermodynamics often eludes even the best of students. This 100-page overview is much better than the chapter or two on thermodynamics in a first year physics text. It is a more lucid and interesting discussion than is even found in Feynman's Lectures in Physics, Volume 1.H. C. Van Ness, a professor of chemical engineering at Rensselaer Polytechnic Institute and expert in thermodynamics, approaches his subject in an uniquely interesting fashion, stressing that the First and Second Law are assumptions based on empirical data. They are fundamental statements that cannot be derived from other principles. In chapter 1 Van Ness borrows a humorous analogy from Feynman to explain the reasonableness of the abstract concept of internal energy and the relationship between internal energy, heat, and work. Chapter 2 introduces the concept of reversibility, and explains its fundamental importance to thermodynamics. In doing so he carefully exposes our underlying assumptions. In chapter 3, titled Heat Engines, Van Ness emphasizes that the reversible process represents the limiting behavior of actual systems, the best that we can hope for. Also, in most cases we are not even able to make calculations unless we simplify our problem by assuming that our system exhibits reversibility. Van Ness carefully explains the basic engineering calculations for both the Otto engine cycle and the Carnot theoretical heat engine. In chapter 4 Van Ness guides the reader carefully through detailed thermodynamic analysis of a large scale power plant. In doing so, he provides an intriguing look at the unintended and unavoidable environmental impact of large power plants. Van Ness introduces the Second Law of Thermodynamics by asking whether we can uncover any hidden relationships in a set of empirical data for reversible heat processes. After being led down several blind alleys, we unexpectedly discover a quantity that seems even more abstract than the concept of internal energy. We decide to call it entropy. The last two chapters - More on the Second Law, and Thermodynamics and Statistical Mechanics - were slightly more difficult. The section on statistical mechanics would normally be found in a physical chemistry textbook. The chapters are written in an informal manner, much like lectures. The mathematics assumes some calculus, but it is not any more difficult a first year physics text. It makes good independent reading, but Van Ness intended for Understanding Thermodynamics to be used along with a standard engineering or physics text. No problems sets are found at the end of the chapters.
38 of 39 people found the following review helpful:
5.0 out of 5 stars
Deals with the abstractness,
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This review is from: Understanding Thermodynamics (Dover Books on Physics) (Paperback)
Thermo is hard for two reasons. The equations are messy, and the properties are so abstract. Van Ness deals directly and only with the second problem. His discussion of energy functions and energy transformations just as rules between observables is very helpful. Using that notion to get at what he means by a property and then making entropy understandable as a PROPERTY of a system is the core of much of the book. The derivation of some basic stuff in statistical mechanics is quite clear, and the logical relationship to classical thermo is very clear. An index would be nice.
17 of 18 people found the following review helpful:
5.0 out of 5 stars
Highly recommended,
By hpwpl (Germany) - See all my reviews
This review is from: Understanding Thermodynamics (Dover Books on Physics) (Paperback)
This book is an excellent conceptual introduction to thermodynamics. It helps you to get the "big picture" without getting into mathematical details. The first few chapters are suitable for high-school students that are interested in the fundamental concepts and laws of thermodynamics.
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