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An example of an isolated system is combustion go glucose in a bomb calorimeter. The calorimeter is sealed and insulated so that nothing exchanges with the surroundings. A real life example would be coffee/tea kept in a thermos. The thermos is sealed and insulated so it retains heat, keeping the coffee/tea warm.
An example would be any sealed, insulated container. Technically insulation is never perfect, and a very minimal amount of heat exchange can still occur between system and surroundings, but not enough to have any significant impact on calculations.
bellaha4F wrote:can someone give examples of an isolated system?
Think of an isolated system as a very good thermos. You wouldn't want any contents of your thermos to come out and you wouldn't want your contents to become cold. So with an isolated system, no heat is exchanged with the surroundings, and no matter is exchange with the surroundings.
If you think about the definition of an isolated system, nothing can interact with the surroundings (reactants, products, or energy). Thus, I like to think of it like a very very good thermos. If you leave hot water in it, an isolated system will keep the water heated through insulating the system and not allowing energy to flow into the surroundings.
the example i think of is a hydroflask. a water bottle like that isn't perfect, but ideally you can think that the temperatures don't transfer and that the temperature of the beverage in the bottle remains the same and not phased from the temperature outside the bottle.
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