Abstract
Absolute zero temperature is one of the fundamental constants in physics. Its experimental determination is of great value to the teaching and understanding of physics. In this paper, we offer two ways of experimental determination of absolute zero. In the first case, the absolute zero is defined by means of an isochoric process (constant volume), conducted with a set amount of air closed in a regular jar. In the other case, the absolute zero is determined by means of an isobaric process (constant pressure) with air closed in a flask. The experiments are characterized by their accessibility and considerable precision of results.
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