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Difference between revisions of "Closed system"

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{{MitoPedia
{{MitoPedia
|description=A system with boundaries that allow external exchange of energy (heat and work), but do not allow exchange of matter.  A limiting case is light and electrons which cross the system boundary when work is exchanged in the form of light or electric energy.  If the surroundings are maintained at constant temperature, and heat exchange is rapid to prevent the generation of thermal gradients, then the closed system is isothermal. Changes of closed systems can be partitioned according to internal and external sources.
|description=A '''closed system''' is a system with boundaries that allow external exchange of energy (heat and work), but do not allow exchange of matter.  A limiting case is light and electrons which cross the system boundary when work is exchanged in the form of light or electric energy.  If the surroundings are maintained at constant temperature, and heat exchange is rapid to prevent the generation of thermal gradients, then the closed system is isothermal. A frequently considered case are closed isothermal systems at constant pressure (and constant volume with aqueous solutions). Changes of closed systems can be partitioned according to internal and external sources. Closed systems may be homogenous (well mixed and isothermal), continuous with gradients, or [[Discontinuous system|discontinuous]] with compartments (heterogenous). 
|info=[[Gnaiger_1993 _PAC]]
|info=[[System]]
|type=General
}}
 
{{Keywords: System}}
 
{{MitoPedia concepts
|mitopedia concept=Ergodynamics
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{{MitoPedia methods
|mitopedia method=Respirometry
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}}
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{{Labeling
|instruments=Theory
|instruments=Theory
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Latest revision as of 12:15, 15 March 2022


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Closed system

Description

A closed system is a system with boundaries that allow external exchange of energy (heat and work), but do not allow exchange of matter. A limiting case is light and electrons which cross the system boundary when work is exchanged in the form of light or electric energy. If the surroundings are maintained at constant temperature, and heat exchange is rapid to prevent the generation of thermal gradients, then the closed system is isothermal. A frequently considered case are closed isothermal systems at constant pressure (and constant volume with aqueous solutions). Changes of closed systems can be partitioned according to internal and external sources. Closed systems may be homogenous (well mixed and isothermal), continuous with gradients, or discontinuous with compartments (heterogenous).


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MitoPedia concepts: Ergodynamics 


MitoPedia methods: Respirometry 


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HRR: Theory