System and Surroundings

Thermodynamics is the science devoted to the study of energy, its transformations, and its relation to the status of matter.

Energy — the first law (conservation of energy) entropy — the second law (quality of energy)

Every naturally occurring transformation of energy is accompanied somewhere by a loss in the availability of energy for future performance of work

Systenr. an object, any quantity of matter, any region of space, etc. selected for study Surroundings’, the rest

Basic system types: Closed system (control mass) and Open system (control volume)

Posted in Fundamentals of Heating. Ventilating, and Air-Conditioning


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