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Dittrich, William; Drosd, Robert; Minkin, Leonid; Shapovalov, Alexander S. – Physics Teacher, 2016
The second law of thermodynamics has various formulations. There is the "Clausius formulation," which can be stated in a very intuitive way: "No process is possible whose sole result is the transfer of heat from a cooler to a hotter body." There is also the "Kelvin-Plank principle," which states that "no cyclic…
Descriptors: Scientific Concepts, Laboratory Experiments, Thermodynamics, Heat