| Journal Articles: 33 results |
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Mass-Elastic Band Thermodynamics: A Visual Teaching Aid at the Introductory Level William C. Galley Demonstrations of five spontaneous isothermal processes involving the coupling of a mass and elastic band and arising from combinations of enthalpy and entropy changes are presented and then dissected. Analogies are drawn between these processes and common spontaneous molecular events such as chemical reactions and phase transitions. Galley, William C. J. Chem. Educ. 2007, 84, 1147.
Calorimetry / Thermochemistry |
Thermodynamics
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"Mysteries" of the First and Second Laws of Thermodynamics Rubin Battino Over the years the subject of thermodynamics has taken on an aura of difficulty, subtlety, and mystery. This article discusses common misconceptions and how to introduce the topic to students. Battino, Rubin. J. Chem. Educ. 2007, 84, 753.
Calorimetry / Thermochemistry |
Thermodynamics
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Entropy and the Shelf Model: A Quantum Physical Approach to a Physical Property Arnd H. Jungermann A quantum physical approach relying on energy quantization leads to three simple rules which are the key to understanding the physical property described by molar entropy values. Jungermann, Arnd H. J. Chem. Educ. 2006, 83, 1686.
Alcohols |
Alkanes / Cycloalkanes |
Carboxylic Acids |
Covalent Bonding |
Ionic Bonding |
Physical Properties |
Quantum Chemistry |
Thermodynamics
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Achieving Chemical Equilibrium: The Role of Imposed Conditions in the Ammonia Formation Reaction Joel Tellinghuisen The conditions under which chemical reactions occur determine which thermodynamic functions are minimized or maximized. This point is illustrated for the formation of ammonia in the ideal gas approximation using a numerical exercise. Tellinghuisen, Joel. J. Chem. Educ. 2006, 83, 1090.
Gases |
Equilibrium |
Thermodynamics
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Teaching Entropy Analysis in the First-Year High School Course and Beyond Thomas H. Bindel A 16-day teaching unit is presented that develops chemical thermodynamics at the introductory high school level and beyond from exclusively an entropy viewpoint referred to as entropy analysis. Many concepts are presented, such as: entropy, spontaneity, the second law of thermodynamics, qualitative and quantitative entropy analysis, extent of reaction, thermodynamic equilibrium, coupled equilibria, and Gibbs free energy. Entropy is presented in a nontraditional way, using energy dispersal. Bindel, Thomas H. J. Chem. Educ. 2004, 81, 1585.
Thermodynamics
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Playing-Card Equilibrium Robert M. Hanson A simple hands-on simulation suitable for either classroom use or laboratory investigation involves using a standard deck of playing cards to explore the statistical aspects of equilibrium. Concepts that can be easily demonstrated include fluctuation around a most probable distribution, Le Chtelier's principle, the equilibrium constant, prediction of the equilibrium constant based on probability, and the effect of sample size on equilibrium fluctuations. Hanson, Robert M. J. Chem. Educ. 2003, 80, 1271.
Equilibrium |
Statistical Mechanics |
Thermodynamics
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Disorder--A Cracked Crutch for Supporting Entropy Discussions Frank L. Lambert Arguments against using disorder as a means of introducing and teaching entropy. Lambert, Frank L. J. Chem. Educ. 2002, 79, 187.
Thermodynamics
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On the Importance of Ideality Rubin Battino, Scott E. Wood, and Arthur G. Williamson Analysis of the utility of ideality in gaseous phenomena, solutions, and the thermodynamic concept of reversibility. Battino, Rubin; Wood, Scott E.; Williamson, Arthur G. J. Chem. Educ. 2001, 78, 1364.
Thermodynamics |
Gases |
Solutions / Solvents
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A Simplified Method for Measuring the Entropy Change of Urea Dissolution. An Experiment for the Introductory Chemistry Lab Charles A. Liberko and Stephanie Terry Guided inquiry to determine values for changes in enthalpy, Gibb's free energy, and entropy for the dissolution of urea in water. Liberko, Charles A.; Terry, Stephanie. J. Chem. Educ. 2001, 78, 1087.
Thermodynamics |
Calorimetry / Thermochemistry
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Determination of Ksp, ΔG0, ΔH0, and ΔS0 for the Dissolution of Calcium Hydroxide in Water: A General Chemistry Experiment William B. Euler, Louis J. Kirschenbaum, and Ben Ruekberg This exercise utilizes low-cost, relatively nonhazardous materials presenting few disposal problems. It reinforces the students' understanding of the interrelationship of solubility, Ksp, ΔG0, ΔH0, and ΔS0. Euler, William B.; Kirschenbaum, Louis J.; Ruekberg, Ben. J. Chem. Educ. 2000, 77, 1039.
Equilibrium |
Thermodynamics |
Titration / Volumetric Analysis
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Understanding Electrochemical Thermodynamics through Entropy Analysis Thomas H. Bindel This discovery-based activity involves entropy analysis of galvanic cells. The intent of the activity is for students to discover the fundamentals of electrochemical cells through a combination of entropy analysis, exploration, and guided discovery. Bindel, Thomas H. J. Chem. Educ. 2000, 77, 1031.
Electrochemistry |
Thermodynamics |
Electrolytic / Galvanic Cells / Potentials
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Boerhaave on Fire Damon Diemente This article offers a selection of passages from Boerhaave's chapter on fire. Boerhaave offers demonstrations and experiments that can be instructively performed today, quantitative data that can be checked against modern equations, and much theory and hypothesis that can be assessed in light of modern chemical ideas. Diemente, Damon. J. Chem. Educ. 2000, 77, 42.
Calorimetry / Thermochemistry |
Thermodynamics
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The Thermodynamics of Drunk Driving Robert Q. Thompson Biological, chemical, and instrumental variables are described along with their contributions to the overall uncertainty in the value of BrAC/BAC. Thompson, Robert Q. J. Chem. Educ. 1997, 74, 532.
Thermodynamics |
Nonmajor Courses |
Forensic Chemistry |
Drugs / Pharmaceuticals |
Applications of Chemistry
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A Brief History of Thermodynamics Notation Rubin Battino, Laurence E. Strong, Scott E. Wood This paper gives a brief history of thermodynamic notation for the energy, E, enthalpy, H, entropy, S, Gibbs energy, G, Helmholtz energy, A, work, W, heat, Q, pressure, P, volume, V, and temperature, T. In particular, the paper answers the question, "Where did the symbol S for entropy come from?" Battino, Rubin; Strong Laurence E.; Wood, Scott E. J. Chem. Educ. 1997, 74, 304.
Thermodynamics
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A Simple Method for Determining the Temperature Coefficient of Voltaic Cell Voltage Alfred E. Saieed, Keith M. Davies This article describes a relatively simple method for preparing voltaic cells, and through their temperature coefficient, ?E/?T, it explores relationships between ?G, ?H,and ?S for the cell reactions involved. Saieed, Alfred E.; Davies, Keith M. J. Chem. Educ. 1996, 73, 959.
Electrochemistry |
Calorimetry / Thermochemistry |
Thermodynamics |
Electrolytic / Galvanic Cells / Potentials |
Laboratory Equipment / Apparatus |
Laboratory Management |
Oxidation / Reduction
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Rubber Elasticity: A Simple Method for Measurement of Thermodynamic Properties Byrne, John P. A modified triple-beam balance that uses an optical lever to detect small changes in the length of a stretched rubber band. Byrne, John P. J. Chem. Educ. 1994, 71, 531.
Thermodynamics |
Laboratory Equipment / Apparatus |
Physical Properties
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The entropy of dissolution of urea Pickering, Miles This experiment combines colorimetric techniques, thermochemical techniques, some volumetric work, and actual measurements of entropy. Pickering, Miles J. Chem. Educ. 1987, 64, 723.
Thermodynamics
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Thermodynamics and the bounce Carraher, Charles E., Jr. Explaining the bouncing of a rubber ball using the laws of thermodynamics. Carraher, Charles E., Jr. J. Chem. Educ. 1987, 64, 43.
Thermodynamics
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Conversion of standard thermodynamic data to the new standard state pressure Freeman, Robert D. Analyzes the changes that will be required to convert standard thermodynamic data from units of atmospheres to the bar. Freeman, Robert D. J. Chem. Educ. 1985, 62, 681.
Thermodynamics |
Nomenclature / Units / Symbols
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Entropy and rubbery elasticity Nash, Leonard K. Thermodynamic analysis of the polymeric molecules of rubber. Nash, Leonard K. J. Chem. Educ. 1979, 56, 363.
Thermodynamics |
Molecular Properties / Structure |
Statistical Mechanics
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General chemistry thermodynamics experiment Beaulieu, Lynn P., CPT An experiment is outlined here that provides students with an opportunity to do experimental thermodynamics, and to calculate those thermodynamic values which usually cannot be determined with the simple equipment available in a general chemistry laboratory. Beaulieu, Lynn P., CPT J. Chem. Educ. 1978, 55, 53.
Thermodynamics
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Brief introduction to the three laws of thermodynamics Stevenson, Kenneth L. Brief descriptions of the three laws of thermodynamics. Stevenson, Kenneth L. J. Chem. Educ. 1975, 52, 330.
Thermodynamics
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P-Chem crossword puzzle Snead, Claybourne C. A physical chemistry crossword puzzle. The answer from p. 174 is reproduced in this PDF. Snead, Claybourne C. J. Chem. Educ. 1975, 52, 158.
Thermodynamics
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Thermodynamics, folk culture, and poetry Smith, Wayne L. The principles of the first, second, and third laws of thermodynamics are illustrated in songs and poems. Smith, Wayne L. J. Chem. Educ. 1975, 52, 97.
Thermodynamics
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The first law. For scientists, citizens, poets and philosophers Bent, Henry A. Practical experiences and phenomena that serve to illustrate the first law of thermodynamics. Bent, Henry A. J. Chem. Educ. 1973, 50, 323.
Thermodynamics
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Our freshmen like the second law Craig, Norman C. The author affirms the place of thermodynamics in the introductory chemistry course and outlines a presentation that has been used with students at this level. Craig, Norman C. J. Chem. Educ. 1970, 47, 342.
Thermodynamics
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Chemical queries. Especially for introductory chemistry teachers Young, J. A.; Malik, J. G. (1) Is there such a thing as a negative pH value? Or one above 14? (2) What is entropy, in terms a beginner may understand? (3) On calculating the molecular weight of a solute from concentration and freezing point depression. Young, J. A.; Malik, J. G. J. Chem. Educ. 1969, 46, 36.
Acids / Bases |
Aqueous Solution Chemistry |
pH |
Thermodynamics |
Molecular Properties / Structure
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The fundamental assumptions of chemical thermodynamics MacRae, Duncan Examines the fundamental terms, definitions, and assumptions of chemical thermodynamics. MacRae, Duncan J. Chem. Educ. 1966, 43, 586.
Thermodynamics
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The use and misuse of the laws of thermodynamics McGlashan, M. L. Examines the first and second laws, the usefulness of thermodynamics, the calculation of equilibrium constants, and what entropy does not mean. McGlashan, M. L. J. Chem. Educ. 1966, 43, 226.
Thermodynamics
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Maximum work revisited (Letters) Kokes, Richard J. Comments on an earlier "Textbook Error" article that considers at length errors in the calculation of work done in compression or expansion of an ideal gas. Kokes, Richard J. J. Chem. Educ. 1964, 41, 675.
Thermodynamics |
Gases
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Maximum work revisited (Letters) Bauman, Robert Comments on an earlier "Textbook Error" article that considers at length errors in the calculation of work done in compression or expansion of an ideal gas. Bauman, Robert J. Chem. Educ. 1964, 41, 675.
Thermodynamics |
Gases
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A second lecture in thermodynamics Burton, Milton Outlines an introduction for the three laws of thermodynamics Burton, Milton J. Chem. Educ. 1962, 39, 500.
Thermodynamics
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The second law of thermodynamics: Introduction for beginners at any level Bent, Henry A. Examines and offers suggestions for dealing with some of the challenges in teaching thermodynamics at an introductory level. Bent, Henry A. J. Chem. Educ. 1962, 39, 491.
Thermodynamics
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