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Cold Water, Warm Ice?
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Yang, Li-Hsuan – Journal of College Science Teaching, 2012
This article describes engaging students in two simple observations to address the concepts of changes of states, heat, temperature, and molecular potential and kinetic energy. It also discusses how these concepts can enable students to further explore and understand interesting and significant phenomena and research in multiple areas of science.…
Descriptors: Science Instruction, Kinetics, Energy, Science Education
Statistical Effects and the Evaluation of Entropy Differences in Equilibrium Processes: Symmetry Corrections and Entropy of Mixing
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Bailey, William F.; Monahan, Audrey S. – Journal of Chemical Education, 1978
Presents an instructional approach to be used in the teaching of equilibrium processes. (CP)
Descriptors: Chemistry, College Science, Heat, Higher Education
Heat of Sublimation of I-2.
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Henderson, Giles; Robarts, Ronald A., Jr. – American Journal of Physics, 1978
Describes an inexpensive double-beam laser photometry experiment to determine the molar heat of sublimation of I-2. The experiment employs common laboratory materials and components and gives results with a two percent to three percent accuracy. (Author/GA)
Descriptors: College Science, Experiments, Heat, Higher Education
Chem I Supplement: Liquid Crystals--The Chameleon Chemicals.
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Brown, Glenn H. – Journal of Chemical Education, 1983
Presents information relevant to everyday life so as to stimulate student interest in the properties of the two basic types of liquid crystals: thermotropic and lyotropic. Describes the applications of liquid crystals to electronics, biomedicine, and polymer science and appraises the future of liquid crystal research. (JM)
Descriptors: Chemistry, College Science, Crystallography, Heat