An Instructor s Solutions Manual to Accompany THERMODYNAMICS for ENGINEERS KENNETH A. KROOS MERLE C. POTTER
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INSTRUCTOR'S SOLUTIONS MANUAL TO ACCOMPANY THERMODYNAMICS for ENGINEERS FIRST EDITION KENNETH A. KROOS MERLE C. POTTER
CONTENTS Chapter Page PREFACE... V 1. BASIC CONCEPTS AND SYSTEMS OF UNITS...1 2. PROPERTIES OF PURE SUBSTANCES...9 3. THE FIRST LAW FOR SYSTEMS....33 4. THE FIRST LAW APPLIED TO CONTROL VOLUMES...59 5. THE SECOND LAW OF THERMODYNAMICS...89 6. ENTROPY... 101 7. THERMODYNAMIC RELATIONS... 127 8. THE RANKINE POWER CYCLE... 147 9. GAS POWER CYCLES... 191 10. REFRIGERATION CYCLES... 231 11. MIXTURES AND PSYCHROMETRICS... 243 12. COMBUSTION... 271 13. ALTERNATIVE ENERGY CONVERSION... 307 14. THERMODYNAMICS OF LIVING ORGANISMS...311
PREFACE This manual provides the solutions to the problems in THERMODYNAMICS for ENGINEERS. In many cases, the solutions are not as detailed as the examples in the book; they are intended to provide the primary steps in each solution so the instructor is able to quickly review how a problem is solved. The instructor should be informed that a solutions manual is also provided on the student web site; it includes solutions to the problems that have answers listed in the back of the textbook. The discussion of a subtle point, should one exist in a particular problem, is left as a task for the instructor. In general, some knowledge of a problem may be needed to fully understand all of the steps presented. This manual is not intended to be a self-paced workbook; the instructor is critically needed to provide explanations, discussions, and illustrations of the myriad of phenomena encountered in the study of thermodynamics. The degree of difficulty and length of solution for each problem varies considerably. Some are relatively easy and others quite difficult. This allows for flexibility in assignments or in practice sessions. Typically, the easier problems are the first problems for a particular section. A number of the problems have a design aspect. We continue to include a number of multiple-choice problems, similar to those encountered on the Fundamentals of Engineering Exam and the GRE/Engineering Exam. These problems will provide students with a review for the Thermodynamics part of those exams. They are all four-part, multiple-choice problems and are located at the beginning of the appropriate chapters. Not all discipline exams (e.g., E.E. and C.E.) that make up the FE Exam include problems on Thermodynamics. This Solutions Manual will also be available on-line in the password-protected Instructor Companion site of the book website at www.cengage.com/engineering, as will complete sets of PowerPoint slides containing all of the figures and tables, and Example Problems and equations from the book. Access to the protected site can only be made by registering on-line as a user of this title. To contact the Cengage Sales Representative for your school/discipline, use either the link above or http://www.cengage.com/rep/index.html. The examples and problems have been carefully solved with the hope that errors have not been introduced. Even though extreme care is taken and problems are reworked, errors creep in. We would appreciate knowing about any errors that you may find. They can be eliminated in the future. We have class tested most of the material with good response from our students, but we are sure that there are improvements to be made. Suggestions for changes and improvements are welcomed; send any corrections or comments to MerleCP@att.net or kenneth.kroos@villanova.edu. Philadelphia, Pennsylvania East Lansing, Michigan Kenneth A. Kroos Merle C. Potter v