Isolated Systems  [ENDORSED]

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Isolated Systems

Postby Gina_Chiarolla_3C » Fri Jan 13, 2017 10:05 pm

There is a question in the textbook that describes a high quality thermos as an isolated system. Why would this be considered an isolated system instead of a closed system if it is possible for the thermos to lose heat over long periods of time?

Molly Laviano 3N
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Re: Isolated Systems  [ENDORSED]

Postby Molly Laviano 3N » Fri Jan 13, 2017 10:10 pm

While an argument could, in theory, be made to say that a high quality thermos is a closed system, we ultimately would choose to consider to be an isolated system because the insulation of the thermos captures the heat to a fairly strong degree. Therefore, very minimal heat, if any, is lost from the system.

Laine Gruver 3C
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Re: Isolated Systems

Postby Laine Gruver 3C » Fri Jan 13, 2017 10:21 pm

There's truly no such thing as an isolated system, only very close to one, so I think you always have to read in between the lines as to what the problem is getting at.

Katie McCombs 3G
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Re: Isolated Systems

Postby Katie McCombs 3G » Tue Jan 17, 2017 11:36 am

In this case it is saying it is the best example of an isolated system. While we know that over time it does lose heat, it in theory (if it is a quality thermos) acts as an isolated system that does not exchange heat or matter.

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