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Arlene A. Russell; Jennifer R. Casey; Kristopher K. Barr – Journal of Chemical Education, 2023
We report here a successful adaptation of lab videos used during remote instruction to a kinetics experiment reported in this Journal in 2007. In the in-person lab, students now record their rate data on their cell phone cameras and then collect their data from the videos for their postlab reports; previously, they acquired the data in real time…
Descriptors: Chemistry, College Freshmen, College Science, Laboratory Experiments
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Falconer, John L.; Hendren, Neil – Chemical Engineering Education, 2021
A virtual catalytic reactor laboratory (VCRL) experiment, which can be used in most browsers, is described. Students select feed conditions and use the VCRL to take data for a gas-phase catalytic reaction and fit kinetic parameters to a Langmuir-Hinshelwood rate expression. The VCRL contains instructions, equipment descriptions, an animated…
Descriptors: Science Instruction, Computer Simulation, Laboratory Experiments, Laboratory Equipment
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Gössling, Alexander; Becker, Sebastian; Kuhn, Jochen – Physics Teacher, 2021
Supersonic free-fall jumps are excellent examples of kinematics in the context of drag. They have attracted a lot of media, public, and scientific interest. In 2012, Felix Baumgartner jumped from a height of approximately 38.969 km. During his flight he reached a top speed of 373 m/s, becoming the first human to travel faster than the speed of…
Descriptors: Science Instruction, Science Experiments, Physics, Kinetics
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Knutson, Theodore R.; Knutson, Cassandra M.; Mozzetti, Abbie R.; Campos, Antonio R.; Haynes, Christy L.; Penn, R. Lee – Journal of Chemical Education, 2015
Chemical kinetic experiments to determine rate laws are common in high school and college chemistry courses. For reactions involving a color change, rate laws can be determined experimentally using spectrophotometric or colorimetric equipment though this equipment can be cost prohibitive. Previous work demonstrated that inexpensive handheld camera…
Descriptors: Handheld Devices, Photography, Kinetics, Chemistry