| Journal Articles: 41 results |
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Introduction of Differential Scanning Calorimetry in a General Chemistry Laboratory Course: Determination of Heat Capacity of Metals and Demonstration of the Law of Dulong and Petit Ronald P. D'Amelia, Vincent Stracuzzi, and William F. Nirode
The work described herein discusses the use of differential scanning calorimetry in a general chemistry laboratory course to determine the specific heat capacities of metals and introduce the empirical law of Dulong and Petit.
D'Amelia, Ronald P.; Stracuzzi, Vincent; Nirode, William F. J. Chem. Educ. 2008, 85, 109.
Calorimetry / Thermochemistry |
Heat Capacity |
Instrumental Methods |
Thermal Analysis
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A Simple Calorimetric Experiment That Highlights Aspects of Global Heat Retention and Global Warming Joel D. Burley and Harold S. Johnston
In this laboratory experiment, general chemistry students verify that heat is consumed in the melting of ice, with no increase in temperature until all the ice has melted. The fundamental calorimetric principles demonstrated by the lab results are then developed to help students better assess and understand the experimental evidence associated with global warming.
Burley, Joel D.; Johnston, Harold S. J. Chem. Educ. 2007, 84, 1686.
Atmospheric Chemistry |
Calorimetry / Thermochemistry
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Thermochemical Analysis of Neutralization Reactions: An Introductory Discovery Experiment Kenneth V. Mills and Louise W. Guilmette
Describes a guided-inquiry laboratory pedagogy in which students discover chemical concepts in the lab and the instructor uses their pooled data to guide the lecture portion of the course. This method is illustrated by an experiment that reinforces students' understanding of stoichiometry and allows them to discover neutralization reactions and thermochemistry.
Mills, Kenneth V.; Guilmette, Louise W. J. Chem. Educ. 2007, 84, 326.
Acids / Bases |
Stoichiometry |
Calorimetry / Thermochemistry |
Acids / Bases
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Dulong and Petit's Law: We Should Not Ignore Its Importance Mary Laing and Michael Laing
This article describes two student exercises: the determination of the specific heat of a metal and hence its atomic weight and a graphical study of specific heat versus atomic weight for different groups of metals and the confirmation of Dulong and Petit's law.
Laing, Mary; Laing, Michael. J. Chem. Educ. 2006, 83, 1499.
Calorimetry / Thermochemistry |
Heat Capacity |
Metals |
Periodicity / Periodic Table
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An Introduction to Polymer Processing, Morphology, and Property Relationships through Thermal Analysis of Plastic PET Bottles. Exercises Designed to Introduce Students to Polymer Physical Properties H. Darrell Iler, Eric Rutt, and Seth Althoff
Through thermal analyses of poly(ethylene terephthlate) (PET) bottles, students are introduced to the relationships between processing, morphology, and physical properties of polymer materials.
Iler, H. Darrell; Rutt, Eric; Althoff, Seth. J. Chem. Educ. 2006, 83, 439.
Applications of Chemistry |
Heat Capacity |
Instrumental Methods |
Materials Science |
Thermal Analysis
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The q/T Paradox: Which "Contains More Heat", a Cup of Coffee at 95°C or a Liter of Icewater? Ed Vitz and Michael J. Schuman
In this demonstration, heat is removed from 10 cm3 of water at ~95C and 42 cm3 of water at ~0C by adding each to a measured sample of liquid nitrogen. The heat removed from the water boils the N2(l), and the quantity of liquid nitrogen that is evaporated by boiling is determined. The quantity of heat that was absorbed is calculated from the heat of vaporization of liquid nitrogen and found to be about 10,000 J in the case of the hot water and 25,000 J in the case of the icewater.
Vitz, Ed; Schuman, Michael J. J. Chem. Educ. 2005, 82, 856.
Calorimetry / Thermochemistry |
Heat Capacity |
Phases / Phase Transitions / Diagrams |
Thermodynamics
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Calories - Who's Counting? JCE Editorial Staff
Students determine how many calories are released per gram when marshmallows and cashews burn and then compare the quantity of energy available from carbohydrates vs. fats.
JCE Editorial Staff . J. Chem. Educ. 2004, 81, 1440A.
Calorimetry / Thermochemistry |
Carbohydrates |
Lipids |
Consumer Chemistry |
Food Science |
Nutrition |
Fatty Acids
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Using Science Fiction To Teach Thermodynamics: Vonnegut, Ice-nine, and Global Warming Charles A. Liberko
When covering the topic of thermodynamics at the introductory level, an example from Kurt Vonnegut, Jr's, fictional novel, Cat's Cradle, is used to take what the students have learned and apply it to a new situation.
Liberko, Charles A. J. Chem. Educ. 2004, 81, 509.
Thermodynamics |
Water / Water Chemistry |
Phases / Phase Transitions / Diagrams |
Noncovalent Interactions |
Calorimetry / Thermochemistry
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Three Forms of Energy Sigthór Pétursson
Calculations comparing the energy involved in three forms: heat, mechanical energy, and expansion against pressure.
Pétursson, Sigthór . J. Chem. Educ. 2003, 80, 776.
Calorimetry / Thermochemistry |
Nutrition |
Thermodynamics
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The Isothermal Heat Conduction Calorimeter: A Versatile Instrument for Studying Processes in Physics, Chemistry, and Biology Lars Wadsö, Allan L. Smith, Hamid Shirazi, S. Rose Mulligan, and Thomas Hofelich
A simple but sensitive isothermal heat-conduction calorimeter and five experiments for students to illustrate its use (heat capacity of solids, acid-base titration, enthalpy of vaporization of solvents, cement hydration, and insect metabolism).
Wadsö, Lars; Smith, Allan L.; Shirazi, Hamid; Mulligan, S. Rose; Hofelich, Thomas. J. Chem. Educ. 2001, 78, 1080.
Calorimetry / Thermochemistry |
Laboratory Equipment / Apparatus |
Thermal Analysis |
Thermodynamics
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A Visual Aid in Enthalpy Calculations Sebastian G. Canagaratna
This article discusses the use of enthalpy-temperature diagrams for reactants and products as a visual aid in the teaching of reaction-enthalpy calculations. By the use of such diagrams the division of the process into a part involving a chemical reaction without a temperature change and a part involving only a temperature change is made visually concrete.
Canagaratna, Sebastian G. J. Chem. Educ. 2000, 77, 1178.
Thermodynamics |
Calorimetry / Thermochemistry
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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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Using TOPEX Satellite El Niño Altimetry Data to Introduce Thermal Expansion and Heat Capacity Concepts in Chemistry Courses Harvey F. Blanck
Warm water is less dense than cool water and will float somewhat like ice, with a portion above the surface of the cooler surrounding water. The height of the bump can be used to estimate the excess thermal energy in the warmer water.
Blanck, Harvey F. J. Chem. Educ. 1999, 76, 1635.
Liquids |
Thermodynamics |
Water / Water Chemistry |
Calorimetry / Thermochemistry
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The Enthalpy of Decomposition of Hydrogen Peroxide: A General Chemistry Calorimetry Experiment Charles J. Marzzacco
The experiment is simple, inexpensive, and colorful. In its simplest form, it can be performed in less than one hour; therefore, it is quite suitable for high school labs, which often have time restrictions. The chemicals required are household or commercial 3% H2O2(aq) and 0.50 M Fe(NO3)3(aq).
Marzzacco, Charles J. J. Chem. Educ. 1999, 76, 1517.
Calorimetry / Thermochemistry |
Catalysis
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Heat Capacity, Body Temperature, and Hypothermia Doris R. Kimbrough
A finger in and out of water are compared to demonstrate the difference between heat capacities and their effect on body temperature.
Kimbrough, Doris R. J. Chem. Educ. 1998, 75, 48.
Calorimetry / Thermochemistry |
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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Determination of Heats of Fusion: Using Differential Scanning Calorimetry for the AP Chemistry Course Susan M. Temme
Using differential scanning calorimetry (DSC) in AP chemistry.
Temme, Susan M. J. Chem. Educ. 1995, 72, 916.
Calorimetry / Thermochemistry |
Calorimetry / Thermochemistry |
Physical Properties |
Phases / Phase Transitions / Diagrams |
Thermal Analysis |
Thermodynamics
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Cooking Efficiencies of Pots and Pans Selco, Jodye I.
This article offers "real life" problems for heat capacity.
Selco, Jodye I. J. Chem. Educ. 1994, 71, 1046.
Heat Capacity |
Applications of Chemistry
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Small-scale thermochemistry experiment Brouwer, Henry
An inexpensive calorimeter that uses approximately 1/10 of the reagents required for the foam coffee cup.
Brouwer, Henry J. Chem. Educ. 1991, 68, A178.
Heat Capacity |
Thermodynamics |
Microscale Lab
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Measuring the heat of sublimation of dry ice with a polystyrene foam cup calorimeter Burgstahler, Albert W.; Bricker, Clark E.
Two versions of an insulated cup calorimetry experiment.
Burgstahler, Albert W.; Bricker, Clark E. J. Chem. Educ. 1991, 68, 332.
Calorimetry / Thermochemistry
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Heating values of fuels: An introductory experiment Rettich, Timothy R.; Battino, Rubin; Karl, David J.
This experiment is a simple, inexpensive way for students to determine the heats of combustion of common solid, liquid, and gaseous fuels.
Rettich, Timothy R.; Battino, Rubin; Karl, David J. J. Chem. Educ. 1988, 65, 554.
Calorimetry / Thermochemistry |
Phases / Phase Transitions / Diagrams |
Applications of Chemistry
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An inexpensive thermistor thermometer for beginning chemistry laboratories Srivastava, Shyam B.; Meloan, Clifton E.
Design of a thermistor thermometer for heats-of-reaction measurements to 0.1C over short temperature ranges.
Srivastava, Shyam B.; Meloan, Clifton E. J. Chem. Educ. 1984, 61, 1027.
Laboratory Equipment / Apparatus |
Calorimetry / Thermochemistry
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Further reflections on heat Hornack, Frederick M.
Confusion regarding the nature of heat and thermodynamics.
Hornack, Frederick M. J. Chem. Educ. 1984, 61, 869.
Kinetic-Molecular Theory |
Thermodynamics |
Calorimetry / Thermochemistry
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Chemical storage of solar energy using an old color change demonstration Spears, L. Gene, Jr.; Spears, Larry G.
The results of a student research project that could be used as an experiment to illustrate the potential of hydrates salts for solar energy storage.
Spears, L. Gene, Jr.; Spears, Larry G. J. Chem. Educ. 1984, 61, 252.
Photochemistry |
Coordination Compounds |
Solutions / Solvents |
Aqueous Solution Chemistry |
Calorimetry / Thermochemistry
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A laboratory learning cycle: Hot stuff Silberman, Robert G.
A calorimetry lab that allows students to design an experiment to solve a problem.
Silberman, Robert G. J. Chem. Educ. 1982, 59, 229.
Calorimetry / Thermochemistry
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Calculation of statistical thermodynamic properties Vicharelli, P. A.; Collins, C. B.
25. Bits and pieces, 9. A computer program for the calculation of specific heat, entropy, enthalpy, and Gibbs free energy of polyatomic molecules.
Vicharelli, P. A.; Collins, C. B. J. Chem. Educ. 1982, 59, 131.
Calorimetry / Thermochemistry |
Thermodynamics |
Chemometrics
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An illustration of applied calorimetry - Dieting students Perkins, Robert R.
The author shares a question that catches student interest and exemplifies the theoretical concepts of calorimetry.
Perkins, Robert R. J. Chem. Educ. 1981, 58, 548.
Calorimetry / Thermochemistry |
Thermodynamics |
Applications of Chemistry
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Maxwell's demon Schmuckler, Joseph S.
Schmuckler, Joseph S. J. Chem. Educ. 1981, 58, 183.
Reactions |
Thermodynamics |
Precipitation / Solubility |
Calorimetry / Thermochemistry |
Kinetics |
Rate Law
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Maxwell's demon Schmuckler, Joseph S.
Schmuckler, Joseph S. J. Chem. Educ. 1981, 58, 183.
Reactions |
Thermodynamics |
Precipitation / Solubility |
Calorimetry / Thermochemistry |
Kinetics |
Rate Law
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A specific heat analogy McCullough, Brother Thomas, CSC
An analogy for helping students to understand the concepts of specific heat and heat transfer problems.
McCullough, Brother Thomas, CSC J. Chem. Educ. 1980, 57, 896.
Calorimetry / Thermochemistry |
Chemometrics
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Hydrogen bonding and heat of solution Friedman, Norman
An experiment that clearly illustrates the role of hydrogen bond formation and its effect on the heat of solution.
Friedman, Norman J. Chem. Educ. 1977, 54, 248.
Hydrogen Bonding |
Calorimetry / Thermochemistry |
Solutions / Solvents
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A simplified undergraduate calorimetry experiment Bartle, K. D.; Osborn, P. M.
A glass calorimeter for determining ?H for the neutralization of a strong acid with a strong base.
Bartle, K. D.; Osborn, P. M. J. Chem. Educ. 1973, 50, 637.
Acids / Bases |
Reactions |
Calorimetry / Thermochemistry |
Laboratory Equipment / Apparatus
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Faster dinner via molecular potential energy Modestino, Sherwood A.
The cooking time for a beef roast can be reduced by using a device that acts as a heat pipe.
Modestino, Sherwood A. J. Chem. Educ. 1972, 49, 706.
Heat Capacity |
Phases / Phase Transitions / Diagrams |
Applications of Chemistry |
Consumer Chemistry
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Thermochemistry of hypochlorite oxidations Bigelow, M. Jerome
Students mix various proportions of aqueous sodium hypochlorite and sodium sulfite and plot the change in temperature to determine the stoichiometry of the reaction.
Bigelow, M. Jerome J. Chem. Educ. 1969, 46, 378.
Calorimetry / Thermochemistry |
Oxidation / Reduction |
Aqueous Solution Chemistry |
Stoichiometry |
Thermodynamics |
Mechanisms of Reactions
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A simple vacuum apparatus for lecture experiments Peterson, L. K.; Ruddy, F. H.
Describes a simple vacuum apparatus and examples of its use in lecture situations.
Peterson, L. K.; Ruddy, F. H. J. Chem. Educ. 1968, 45, 742.
Laboratory Equipment / Apparatus |
Gases |
Liquids |
Physical Properties |
Transport Properties |
Stoichiometry |
Calorimetry / Thermochemistry
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Recent developments in calorimetry: Part two. Some associated measurements (cont.) Wilhoit, Randolph C.
Examines the measurement of electricity, calorimetric standards, solution calorimetry, and specific types of calorimeters.
Wilhoit, Randolph C. J. Chem. Educ. 1967, 44, A685.
Calorimetry / Thermochemistry |
Instrumental Methods |
Laboratory Equipment / Apparatus
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Recent developments in calorimetry. Part 1. Introductory survey of calorimetry Wilhoit, Randolph C.
Explores the scope and purpose of calorimetric investigation, types of calorimeters, areas of calorimetric investigation and the procedures and calculations involved.
Wilhoit, Randolph C. J. Chem. Educ. 1967, 44, A571.
Calorimetry / Thermochemistry |
Instrumental Methods |
Laboratory Equipment / Apparatus
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Heat of precipitation Clever, H. L.
Provides suggestions for research to accompany earlier published articles.
Clever, H. L. J. Chem. Educ. 1963, 40, A386.
Undergraduate Research |
Calorimetry / Thermochemistry |
Precipitation / Solubility
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Calorimetry Kokes, R. J.; Dorfman, M. K.; Mathia, T.
The freshman chemistry lab involves measuring the heat capacities of nickel and copper and the heats of two neutralization reactions.
Kokes, R. J.; Dorfman, M. K.; Mathia, T. J. Chem. Educ. 1962, 39, 90.
Calorimetry / Thermochemistry
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A flashbulb bomb calorimeter Hornyak, Frederick M.
This report describes a do-it-yourself experiment in thermochemistry using flashbulbs as calorimeter bombs.
Hornyak, Frederick M. J. Chem. Educ. 1961, 38, 97.
Laboratory Equipment / Apparatus |
Calorimetry / Thermochemistry
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Water equivalent of vacuum flask calorimeter by the ice fusion method Dunicz, Boleslaw Ludwik
Presents the design of a vacuum flask calorimeter and describes the determination of its water equivalent by the ice fusion method.
Dunicz, Boleslaw Ludwik J. Chem. Educ. 1960, 37, 635.
Calorimetry / Thermochemistry |
Laboratory Equipment / Apparatus
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