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Nash, John J.; Leininger, Marnie A.; Keyes, Kurt – Journal of Chemical Education, 2008
The aryl sulfonate ester, menthyl N-acetylsulfanilate, is synthesized from N-acetylsulfanilyl chloride and menthol in pyridine, then pyrolyzed (thermally decomposed) at reduced pressure. The volatile (elimination) products of the reaction are analyzed using gas chromatography, and the resulting product distribution is used to determine whether the…
Descriptors: Organic Chemistry, Scientific Principles, Science Instruction, Thermodynamics
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Beke, Tamas – Physics Education, 2009
In this article we present project work on physical measurements and an examination task with a Rijke tube. The aim of our project is to help students increase their knowledge of thermoacoustics while at the same time developing their applied information technology skills and improving their cooperation skills. Our school project promotes pedagogy…
Descriptors: Teaching Methods, Thermodynamics, Measurement Techniques, Acoustics
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Galleano, Monica; Boveris, Alberto; Puntarulo, Susana – Journal of Chemical Education, 2008
This article describes a simple and inexpensive laboratory exercise developed to understand the effect of pressure on phase equilibrium as described by the Clausius-Clapeyron equation. The only piece of equipment required is a pressure cooker adapted with a pressure gauge and a thermometer in the lid, allowing the measurement of the pressure and…
Descriptors: Climate, Science Instruction, Laboratory Experiments, Science Laboratories
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Vachutka, J.; Grec, P.; Mornstein, V.; Caruana, C. J. – European Journal of Physics, 2008
The heating of tissues by diagnostic ultrasound can pose a significant hazard particularly in the imaging of the unborn child. The demonstration of the temperature field in tissue is therefore an important objective in the teaching of biomedical physics to healthcare professionals. The temperature field in a soft tissue model was made visible and…
Descriptors: Physics, Biophysics, Biomedicine, Climate
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Ozerov, Oleg V.; Fafard, Claudia M.; Hoffman, Norris W. – Journal of Chemical Education, 2007
This manuscript describes a set of three experiments that investigates the thermodynamic and kinetic aspects of phosphine substitution at a Ru center. In the first experiment, the students synthesize a Ru organometallic complex containing a phosphine ligand. In the second, equilibria for phosphine substitution involving several different…
Descriptors: Thermodynamics, Kinetics, Chemistry, Science Instruction
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Pour, Sanaz Barar; Norca, Gregory Benoit; Fradette, Louis; Legros, Robert; Tanguy, Philippe A. – Chemical Engineering Education, 2007
Solid-liquid and liquid-liquid mixing experiments have been developed to provide students with a practical experience on suspension and emulsification processes. The laboratory focuses on the characterization of the process efficiency, specifically the influence of the main operating parameters and the effect of the impeller type. (Contains 2…
Descriptors: Chemical Engineering, Science Laboratories, Science Instruction, Science Experiments