Isolated Systems  [ENDORSED]

Moderators: Chem_Mod, Chem_Admin

Gina_Chiarolla_3C
Posts: 20
Joined: Wed Sep 21, 2016 2:59 pm

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
Posts: 13
Joined: Wed Sep 21, 2016 2:58 pm

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
Posts: 19
Joined: Wed Sep 21, 2016 2:56 pm

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
Posts: 19
Joined: Wed Sep 21, 2016 2:57 pm

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.


Return to “Thermodynamic Systems (Open, Closed, Isolated)”

Who is online

Users browsing this forum: No registered users and 1 guest