Closed system: Difference between revisions

Latest revision as of 10:32, 26 March 2024

In mathematics, a system of differential equations and supplementary conditions such that the values of all the unknowns (dependent variables) of the system are mathematically determined for all values of the independent variables (usually space and time) to which the system applies.
In thermodynamics, a system of fixed mass.
By some definitions such a system may be confined to an impermeable container. An idealized air parcel, not diffusing into or mixing with its environment and undergoing a saturation- adiabatic process, is closed, as contrasted to one undergoing pseudoadiabatic expansion with precipitation removed.
Compare open system, isolated system.
In synoptic meteorology, loosely used for a closed low or closed high.

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+{{Term
+|Display title=closed system
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+|Definitions={{Definition
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+|Meaning=#In mathematics, a system of differential equations and supplementary conditions  such that the values of all the unknowns ([[dependent variables]]) of the system are mathematically  determined for all values of the [[independent variables]] (usually space and time) to which the  system applies.
-<div class="termentry">
+|Explanation=#In [[thermodynamics]], a system of fixed mass.<br/> By some definitions such a system may be confined to an impermeable container. An idealized  [[air parcel]], not diffusing into or [[mixing]] with its [[environment]] and undergoing a [[saturation-adiabatic process|saturation-  adiabatic process]], is closed, as contrasted to one undergoing [[pseudoadiabatic expansion]] with  [[precipitation]] removed. <br/>''Compare'' [[open system]], [[isolated system]].<br/>
-  <div class="term">
+#In [[synoptic meteorology]], loosely used for a [[closed low]] or [[closed high]].
-== closed system ==
+}}
-  </div>
+}}
-#<div class="definition"><div class="short_definition">In mathematics, a system of differential equations and supplementary conditions  such that the values of all the unknowns ([[dependent variables]]) of the system are mathematically  determined for all values of the [[independent variables]] (usually space and time) to which the  system applies.</div><br/> </div>
-#<div class="definition"><div class="short_definition">In [[thermodynamics]], a system of fixed mass.</div><br/> <div class="paragraph">By some definitions such a system may be confined to an impermeable container. An idealized  [[air parcel]], not diffusing into or [[mixing]] with its [[environment]] and undergoing a [[saturation-  adiabatic process]], is closed, as contrasted to one undergoing [[pseudoadiabatic expansion]] with  [[precipitation]] removed. <br/>''Compare'' [[open system]], [[isolated system]].</div><br/> </div>
-#<div class="definition"><div class="short_definition">In [[synoptic meteorology]], loosely used for a [[closed low]] or [[closed high]].</div><br/> </div>
-</div>
-{{TermIndex}}
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-[[Category:Terms_C]]