Isolated

Moderators: Chem_Mod, Chem_Admin

Hellen Truong 2J
Posts: 50
Joined: Sat Jul 22, 2017 3:00 am
Been upvoted: 1 time

Isolated

Postby Hellen Truong 2J » Sat Feb 03, 2018 9:13 pm

How can an isolated system have a change in temperature but no heat transfer since isolated means no energy or matter exchanged with the surroundings?

Curtis Wong 2D
Posts: 62
Joined: Sat Jul 22, 2017 3:00 am

Re: Isolated

Postby Curtis Wong 2D » Sat Feb 03, 2018 10:11 pm

So if we go back to the drawn system or like lets say a bomb calorimeter right? The whole system itself is isolated, but the things thats inside the bomb calorimeter and the isolated system are not isolated. So that's why there can be a change in temperature within the individual system thats within the isolated system.

Christina Cen 2J
Posts: 53
Joined: Sat Jul 22, 2017 3:01 am

Re: Isolated

Postby Christina Cen 2J » Sun Feb 04, 2018 12:36 am

There isn't any exchange in heat or matter with the surroundings of an isolated system, but heat can still be generated inside the system itself. This change is isolated because it is contained within the system, and the heat is not released into the surroundings.

Tiffany 1B
Posts: 32
Joined: Fri Sep 29, 2017 7:05 am

Re: Isolated

Postby Tiffany 1B » Sun Feb 04, 2018 9:58 am

I think this would be because the heat is contained within the system.

Elizabeth Bamishaye 2I
Posts: 54
Joined: Fri Sep 29, 2017 7:04 am

Re: Isolated

Postby Elizabeth Bamishaye 2I » Sun Feb 04, 2018 2:22 pm

Christina Cen 3E wrote:There isn't any exchange in heat or matter with the surroundings of an isolated system, but heat can still be generated inside the system itself. This change is isolated because it is contained within the system, and the heat is not released into the surroundings.

Yes, I agree with this.

Jaewoo Jo 2L
Posts: 31
Joined: Fri Sep 29, 2017 7:06 am

Re: Isolated

Postby Jaewoo Jo 2L » Sun Feb 04, 2018 6:42 pm

this is like the question in the quiz where petrol was burned in an isolated chamber. the combustion reaction generated heat but the heat didn't escape from the system or enter from the surroundings.

Josh Moy 1H
Posts: 58
Joined: Thu Jul 13, 2017 3:00 am

Re: Isolated

Postby Josh Moy 1H » Wed Feb 07, 2018 10:29 am

Heat is contained in the isolated system so it changes within itself. The only thing that cant be changed is volume because its constant

Sophie 1I
Posts: 51
Joined: Fri Sep 29, 2017 7:04 am

Re: Isolated

Postby Sophie 1I » Wed Feb 07, 2018 12:15 pm

Heat can be generated inside the system which causes the change in temperature

Michael Lee 2I
Posts: 51
Joined: Fri Sep 29, 2017 7:05 am

Re: Isolated

Postby Michael Lee 2I » Fri Feb 09, 2018 7:31 pm

The heat is changing within the isolated system. Not changing from the surroundings.

Kaelie Blanes-Ronda 2L
Posts: 42
Joined: Fri Sep 29, 2017 7:07 am
Been upvoted: 1 time

Re: Isolated

Postby Kaelie Blanes-Ronda 2L » Fri Feb 09, 2018 8:59 pm

The isolated system is able to have reactions occur within its walls. It does not however allow for the environment to play a role as in the exchange of energy or matter by/to the system to the environment. It works like a hydro flask with ice, after many hours the ice will melt and there would be a temperature change but it isn't affected by its surroundings as a cup with water would (open).


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

Who is online

Users browsing this forum: No registered users and 1 guest