What is the difference between a closed system and an open system?
An open system is a state of a system, in which a system continuously interacts with its environment. Open systems are those that maintain their state and exhibit the characteristics of openness. A closed system is a system in the state of being isolated from its surrounding environment. The term often refers to an idealized system in which closure is perfect. In reality no system can be completely closed; there are only varying degrees of closure.