A well stoppered thermos flask contains some ice cubes. This is an example of:

closed system

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open system

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isolated system

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non-thermodynamic system

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Solution

The correct option is D isolated system
An isolated system is a thermodynamic system that can not exchange either energy or matter outside the boundaries of the system.
Thus, a well stopped thermos flask containing ice an example for isolated system.

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Similar questions

Assertion (A): A system is said to be closed if it can exchange energy but not matter.

Reason (R): Coffee in a stoppered thermos flask is an example of closed system.

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