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Showing 16 to 30 of 36 results Save | Export
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Meyer, Edwin F. – Journal of Chemical Education, 1987
Discusses some of the misconceptions commonly held suggesting that mixing ideal gases causes an increase in entropy. Argues that the combining processes and resulting total pressure have absolutely nothing to do with the mixing itself. (TW)
Descriptors: Chemical Reactions, Chemistry, College Science, Higher Education
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Ritacco, Herna´n A.; Fortunatti, Juan C.; Devoto, Walter; Ferna´ndez-Miconi, Eugenio; Dominguez, Claudia; Sanchez, Miguel D. – Journal of Chemical Education, 2014
In this paper, we describe laboratory and classroom exercises designed to obtain the "fundamental" equation of a rubber band by combining experiments and theory. The procedure shows students how classical thermodynamics formalism can help to obtain empirical equations of state by constraining and guiding in the construction of the…
Descriptors: Thermodynamics, Fundamental Concepts, Equations (Mathematics), Science Experiments
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Sobel, Michael I. – American Journal of Physics, 1980
Discusses how the adiabatic law for ideal gases can be derived from the assumption of a Maxwell-Boltzmann (or any other) distribution of velocities--in contrast to the usual derivations from thermodynamics alone, and the higher-order effect that leads to one-body viscosity. An elementary derivation of the adiabatic law is given. (Author/DS)
Descriptors: College Science, Higher Education, Kinetic Molecular Theory, Mechanics (Physics)
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Whelan, P. M. – Physics Education, 1977
Presents a consistent approach to the introduction of the mole in teaching kinetic theory and thermodynamics of ideal and real gases. (SL)
Descriptors: Chemistry, College Science, Fundamental Concepts, Higher Education
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Landsberg, P. T.; Tranah, D. – American Journal of Physics, 1978
Analyzes the sudden drop in the isothermal entropy of mixing when two ideal quantum gases are made identical. (Author/SL)
Descriptors: College Science, Heat, Higher Education, Mathematical Models
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Ashkenazi, Guy – Journal of Chemical Education, 2008
Previous research has documented a gap in students' understanding of gas behavior between the algorithmic-macroscopic level and the conceptual-microscopic level. A coherent understanding of both levels is needed to appreciate the difference in properties of different gases, which is not manifest in the ideal gas law. A demonstration that…
Descriptors: Molecular Structure, Science Education, Chemistry, Science Instruction
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Luzuriaga, J. – European Journal of Physics, 2010
The trajectories of the molecules in an ideal gas and of the ball in a soccer game are compared. The great difference between these motions and some similarities are discussed. This example could be suitable for discussing many concepts in kinetic theory in a way that can be pictured by students for getting a more intuitive understanding. It could…
Descriptors: Introductory Courses, Team Sports, Kinetics, Physics
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Hoover, William G.; Moran, Bill – American Journal of Physics, 1979
Presented are two problem exercises involving rapid compression and expansion of ideal gases which illustrate the first and second laws of thermodynamics. The first problem involves the conversion of gravitational energy into heat through mechanical work. The second involves the mutual interaction of two gases through an adiabatic piston. (BT)
Descriptors: College Science, Higher Education, Physics, Problem Solving
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Haynes, Henry W., Jr. – Chemical Engineering Education, 1986
Current chemical engineering textbooks teach that the driving force for diffusive mass transport in ideal solutions is the gradient in mole fraction. This is only true for ideal solution liquids. Therefore, it is shown that the appropriate driving force for use with ideal gases is the gradient in partial pressure. (JN)
Descriptors: Chemical Engineering, Diffusion (Physics), Engineering Education, Higher Education
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Otani, Robert; Siegel, Peter – Physics Teacher, 1991
Presents an experiment to demonstrate Charles's Law of Ideal Gases by creating a constant-pressure thermometer from materials that can be found in the kitchen. Discusses the underlying mathematical relationships and a step-by-step description of the experiment. (MDH)
Descriptors: Enrichment Activities, High Schools, Mathematical Formulas, Measurement
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Kumler, Lori M.; Vosburg-Bluem, Bethany – Social Education, 2014
Weather phenomena across the United States have provided heightened attention to climate change in headlines such as "Heavy Rain and Floods: The 'New Normal' with Climate Change?" ("Christian Science Monitor," Aug. 14, 2014); "Delay Action on Climate Change by 10 Years and Costs Rocket 40%"…
Descriptors: Social Studies, Climate, Class Activities, Classroom Techniques
New York Inst. of Tech., Old Westbury. – 1965
As the fourteenth lesson of the Articulated Multimedia Physics Course, instructional materials are presented in this study guide with relation to gases, gas laws, and absolute temperature. The topics are concerned with the kinetic theory of gases, thermometric scales, Charles' law, ideal gases, Boyle's law, absolute zero, and gas pressures. The…
Descriptors: College Science, Computer Assisted Instruction, Instructional Materials, Kinetic Molecular Theory
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Chirpich, Thomas P. – Journal of Chemical Education, 1977
Reports a qualitative experiment on the contraction of gases which has dramatic appeal to arouse student curiosity. (SL)
Descriptors: Chemistry, College Science, Demonstrations (Educational), Higher Education
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Licata, Kenneth P. – Science Teacher, 1988
Explains the use of constructing and analyzing analogies as a way to enhance student understanding and recollection of scientific concepts. Offers suggestions for topics including energy activation, phases of matter, electron transitions, equilibrium, covalent bonds, wave and particle duality, reaction types, ideal versus real gases, and oxidation…
Descriptors: Chemistry, Comprehension, Concept Formation, Concept Teaching
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Journal of Chemical Education, 2005
Ocean Optics offers laser-induced breakdown spectrometer systems (LIBS) that can be used to identify light to heavy metals in a variety of sample types and geometries in environmental analysis applications. LIBS are versatile, real-time, high-resolution analyzers for qualitative analysis, in less than one second, of every element in solids,…
Descriptors: Optics, Spectroscopy, Metallurgy, Identification
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