Question

Water contained in a

• A. closed system
• B. open system
• C. isolated system

Answer 1

Systems can be classified in three different ways depending on the nature of the exchange of energy and matter with the surrounding.
Open system-those system which exchange both energy and matter.
Closed system-those which exchange energy not matter.
Isolated system- those which exchange neither energy nor matter.
Thus, water contained in a glass is an open system, water contained in a bottle is a closed system and water in a thermos flask in an isolated system.