Constant Pressure Calorimeter

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Seohyun Park 1L
Posts: 73
Joined: Fri Sep 28, 2018 12:29 am

Constant Pressure Calorimeter

Postby Seohyun Park 1L » Wed Feb 06, 2019 10:04 am

Is a constant pressure calorimeter considered an open or isolated system?

Ethan Baurle 1A
Posts: 33
Joined: Fri Sep 28, 2018 12:19 am

Re: Constant Pressure Calorimeter

Postby Ethan Baurle 1A » Wed Feb 06, 2019 10:12 am

Most calorimeters we work with should be isolated or closed systems. I don't think any of them will be open.

Sarah Fatkin 4I
Posts: 71
Joined: Fri Sep 28, 2018 12:27 am

Re: Constant Pressure Calorimeter

Postby Sarah Fatkin 4I » Wed Feb 06, 2019 10:14 am

Bomb calorimeters (which a lot of problems include) are considered isolated, because no matter can be added and external heat does not have an effect on the internal system. Hope this helps!

Cameron_Greenberg_3C
Posts: 60
Joined: Fri Sep 28, 2018 12:26 am

Re: Constant Pressure Calorimeter

Postby Cameron_Greenberg_3C » Sat Feb 16, 2019 4:48 pm

Calorimeter problems are designed to evaluate reactions in an isolated system so it is understood that there is no interaction with the surroundings. This makes the heat gained/released of the elements inside equal to the heat gained/released by the calorimeter.

Sean_Rodriguez_1J
Posts: 62
Joined: Fri Sep 28, 2018 12:17 am

Re: Constant Pressure Calorimeter

Postby Sean_Rodriguez_1J » Sat Feb 16, 2019 8:50 pm

I think it would be considered an isolated system because the reaction must not lose heat to the environment in order for us to make calculations. If it was able to exchange energy as heat (like one and closed systems can), measuring the heat of the reaction would be impossible.

Ashe Chen 2C
Posts: 31
Joined: Mon Jan 07, 2019 8:23 am

Re: Constant Pressure Calorimeter

Postby Ashe Chen 2C » Sat Feb 16, 2019 9:40 pm

Calorimeters are considered isolated systems in problems, although it is very difficult to create a true isolated system in real life calorimeters are pretty close and are considered isolated.


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