Types of Systems

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Emily Orozco L4
Posts: 45
Joined: Fri Sep 28, 2018 12:29 am

Types of Systems

Postby Emily Orozco L4 » Sun Feb 02, 2020 11:17 pm

How do you determine is something is a closed system?

RasikaObla_4I
Posts: 100
Joined: Thu Jul 25, 2019 12:15 am

Re: Types of Systems

Postby RasikaObla_4I » Sun Feb 02, 2020 11:22 pm

In a closed system, energy can exchange with the surroundings. An example is a sealed beaker of water.

Niharika 1H
Posts: 50
Joined: Thu Jul 25, 2019 12:16 am

Re: Types of Systems

Postby Niharika 1H » Sun Feb 02, 2020 11:23 pm

A closed system can be changed through heat transfer and work only, while an open system can allow for energy and matter exchange.

VLi_2B
Posts: 99
Joined: Sat Sep 14, 2019 12:15 am

Re: Types of Systems

Postby VLi_2B » Sun Feb 02, 2020 11:25 pm

Can someone please give an example of an isolated system that is not a bomb calorimeter or a hydroflask?

Jasleen Kahlon
Posts: 52
Joined: Wed Nov 21, 2018 12:19 am

Re: Types of Systems

Postby Jasleen Kahlon » Sun Feb 02, 2020 11:33 pm

Open system: exchanges energy and matter with surroundings
Closed system: exchanges energy, but not matter, with surroundings
Isolated system: exchanges neither energy nor matter with surroundings

An example to help remember this is by thinking of cooking a liquid in a pot on a stove. If the lid is left off, it is an open system as it can exchange matter and energy with its surroundings. If you put a lid on it, it is a closed system, as it is still exchanging thermal energy but not matter. If the liquid is placed into an airtight thermos, it is similar to an isolated system.

There aren't too many other examples of isolated systems other than an airtight thermos or a bomb calorimeter because its nearly impossible to isolate anything entirely from exchanging energy.

005206171
Posts: 107
Joined: Wed Sep 18, 2019 12:20 am

Re: Types of Systems

Postby 005206171 » Mon Feb 03, 2020 12:32 am

VLi_2B wrote:Can someone please give an example of an isolated system that is not a bomb calorimeter or a hydroflask?


The universe since energy is conserved.

smurphy1D
Posts: 51
Joined: Mon Nov 18, 2019 12:18 am

Re: Types of Systems

Postby smurphy1D » Mon Feb 03, 2020 10:17 am

Is pressure always Constant in a closed system? Is pressure constant in an open system too?

rohun2H
Posts: 100
Joined: Wed Sep 18, 2019 12:19 am

Re: Types of Systems

Postby rohun2H » Mon Feb 03, 2020 12:37 pm

A closed system can exchange heat but not matter


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