Changes

Jump to navigation Jump to search
18 bytes added ,  14:32, February 22, 2007
?
Line 1: Line 1: −
A closed system is a physical system that does not exchange matter with its surroundings, and which is not subject to intelligent intervention. A closed system may exchange heat with its surroundings.
+
A closed system is a physical system that does not exchange matter with its surroundings, and which is not subject to intelligent intervention.
 +
 
 +
A closed system may exchange heat with its surroundings. (citation needed)
121

edits

Navigation menu