MCQ
Hot coffee stored in a wall insulated thermos flask is an example of ........
Options
A) Open system
B) Closed system
C) Isolated system
D) None of these
Correct answer : option C ( solution discussed below)
Solution
The system in which mass and heat does not transfer that types of system is called as isolated system.
Thermos flask is device that used for stored hot coffee or tea. This device does not transfer mass and heat to another system or surrounding.
i.e. Hot coffee stored in a well insulated thermos flask is an example of isolated system.
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