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A well stopped thermos flask contain some ice cubes. This is an example of ______?

A well stopped thermos flask contain some ice cubes. This is an example of ______?

ایک اچھی طرح سے رکنے والا تھرموس فلاسک میں کچھ آئس کیوب ہوتے ہیں۔ یہ ______ کی مثال ہے؟
Explanation
  • An isolated system does not exchange heat or matter with its surroundings.
  • A well-stopped thermos flask prevents heat transfer, keeping the ice cubes from melting quickly.