THERMODYNAMICS || OPEN SYSTEM ANALYSIS BY FIRST LAW || STEADY FLOW SYSTEM || MASS BALANCE || HINDI
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- Опубликовано: 4 окт 2024
- THERMODYNAMICS || OPEN SYSTEM ANALYSIS BY FIRST LAW || STEADY FLOW SYSTEM || HINDI
For the first law of thermodynamics, there is no trivial passage of physical conception from the closed system view to an open system view.For closed systems, the concepts of an adiabatic enclosure and of an adiabatic wall are fundamental. Matter and internal energy cannot permeate or penetrate such a wall. For an open system, there is a wall that allows penetration by matter. In general, matter in diffusive motion carries with it some internal energy, and some microscopic potential energy changes accompany the motion. An open system is not adiabatically enclosed.
There are some cases in which a process for an open system can, for particular purposes, be considered as if it were for a closed system. In an open system, by definition hypothetically or potentially, matter can pass between the system and its surroundings. But when, in a particular case, the process of interest involves only hypothetical or potential but no actual passage of matter, the process can be considered as if it were for a closed system.
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