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Bauer, Christina A.; Hamada, Terianne Y.; Kim, Hyesoo; Johnson, Mathew R.; Voegtle, Matthew J.; Emrick, Matthew S. – Journal of Chemical Education, 2018
Quantum dots (QDs) are useful for demonstrating the particle-in-a-box (PIB) model utilized in quantum chemistry, and can readily be applied to a discussion of both thermodynamics and kinetics in an undergraduate laboratory setting. Modifications of existing synthetic procedures were used to create QDs of different sizes and compositions (CdS…
Descriptors: Science Instruction, College Science, Undergraduate Study, Chemistry
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Orbey, Nese; De Jesús Vega, Marisel; Zalluhoglu, Fulya Sudur – Chemical Engineering Education, 2017
A general tank-draining problem was used as an experimental project in two undergraduate-level chemical engineering courses. The project aimed to illustrate the critical nature of experimentation in addition to use of mass and energy conservation principles in developing mathematical models that correctly describes a system. The students designed…
Descriptors: Science Instruction, Scientific Concepts, Chemistry, College Science
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Lam, R. B.; And Others – Journal of Chemical Education, 1983
Investigated application of binomial statistics to equilibrium distribution of ester systems by employing gas chromatography to verify the mathematical model used. Discusses model development and experimental techniques, indicating the model enables a straightforward extension to symmetrical polyfunctional esters and presents a mathematical basis…
Descriptors: Chemical Equilibrium, Chemistry, Chromatography, College Science
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Frazer, Jack W.; And Others – Analytical Chemistry, 1983
Discusses simulation program to aid in the design of enzyme kinetic experimentation (includes sample runs). Concentration versus time profiles of any subset or all nine states of reactions can be displayed with/without simulated instrumental noise, allowing the user to estimate the practicality of any proposed experiment given known instrument…
Descriptors: Chemical Reactions, Chemistry, College Science, Computer Programs
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Brady, K. T. – Journal of Chemical Education, 1989
Presents a device to illustrate the concepts of entropy of mixing and the contribution of one term in the Gibb's equation. Notes the device is relatively easy to construct and provides a visual demonstration on diffusion. (MVL)
Descriptors: Chemical Equilibrium, Chemistry, College Science, Entropy