Isolated system

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Jeanelle Ocampo 2L
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Joined: Mon Jan 09, 2023 9:38 am

Isolated system

Postby Jeanelle Ocampo 2L » Sun Feb 05, 2023 12:11 am

Hi! I'm still a bit confused about the idea of an isolated system. Could someone clarify what it is and, if possible, provide an example? Thanks so much!

Dylan Do
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Joined: Mon Jan 09, 2023 9:46 am

Re: Isolated system

Postby Dylan Do » Sun Feb 05, 2023 12:20 am

An isolated system is a system that does not intereact with its surroundings as neither matter nor energy can enter or exit it. An example could be hot water sealed tightly in a thermoflask. That way neither the water(matter) nor heat(energy) can enter or exit. In other words, it stays warm.

Emily Diep 2L
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Re: Isolated system

Postby Emily Diep 2L » Sun Feb 05, 2023 1:06 am

Hi!

An isolated system means that both energy and matter do NOT exchange with its surroundings. Whereas a closed system only exchanges energy and an open system exchanges both energy and matter.
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Tatum Pearlman 2D
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Re: Isolated system

Postby Tatum Pearlman 2D » Sun Feb 05, 2023 4:39 am

An isolated system is a system that does not exchange heat or energy with its surroundings. An example of an isolated system is the combustion of glucose in a bomb calorimeter.

Allyson_Khachaturov_3B
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Re: Isolated system

Postby Allyson_Khachaturov_3B » Sun Feb 05, 2023 10:51 am

Hello, an isolated system is one that cannot exchange energy with its surroundings. One example that I use to wrap my head around this concept is a soup thermos. When something hot is poured into, such as soup, the thermos attempts to not interact with its surroundings to not let the heat out. An isolated system works in a similar fashion by not letting energy into its surrounding. I hope this analogy helps!

Kushal Chatterjee 1J
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Re: Isolated system

Postby Kushal Chatterjee 1J » Sun Feb 05, 2023 5:35 pm

An isolated system is one in which nothing (neither matter nor heat) can exchange with the surroundings.
You can think of a bomb calorimeter as our closest example to an isolated system since it is both insulated and sealed.

Oscar Tan 1L
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Re: Isolated system

Postby Oscar Tan 1L » Sun Feb 05, 2023 5:39 pm

Hi an isolated system is one where theoretically no energy nor matter can enter or exit. This includes the bomb calorimeter which is designed to be insulated and closed off

Yanaa_Mehra_1K
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Re: Isolated system

Postby Yanaa_Mehra_1K » Sun Feb 05, 2023 5:48 pm

An isolated system is one in which neither matter nor energy transfer takes place. The energy and matter of the system remains constant and it is not affected by its external environment. An example would be that suppose a reaction takes place in an isolated system and its energy is 10 Joules, after a long time , its energy would still be 10 joules.

Nikki Ma 3B
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Re: Isolated system

Postby Nikki Ma 3B » Sun Feb 05, 2023 6:25 pm

in an isolated system, there is no exchange of matter or energy
ex: an insulated cup of water that is sealed: no energy released or going in AND no additional water entering or leaving

in an open system, there is an exchange of enery and energy (opposite of an isolated system)
ex: a normal cup of water that is NOT sealed: energy released or going in AND additional water entering or leaving

in a closed system, there is only an exchange of energy, no matter
ex: a normal cup of water that is sealed: energy released or going in BUT no additional water entering or leaving

hope that helps :)

Hayden Kim 1G
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Re: Isolated system

Postby Hayden Kim 1G » Sun Feb 05, 2023 7:01 pm

An isolated system is a system that does not exchange heat or energy with its surroundings or anything that is not part of the system. The example we went over in class was a bomb calorimeter but since this is not as familiar I like to think about a hydroflask of some sort as these bottles are built to trap energy and heat inside the bottle which would be the system so that your drink continues to stay hot/cold. It basically just makes sure everything in the system stays in the system and nothing outside of it can affect it

Kaylee Cheng 3E
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Re: Isolated system

Postby Kaylee Cheng 3E » Sun Feb 05, 2023 7:30 pm

In an isolated system, no matter or energy will be exchanged between the system and its surroundings. An example is glucose in a bomb calorimeter.

505681302
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Re: Isolated system

Postby 505681302 » Sun Feb 05, 2023 7:31 pm

Jeanelle Ocampo 2L wrote:Hi! I'm still a bit confused about the idea of an isolated system. Could someone clarify what it is and, if possible, provide an example? Thanks so much!


An isolated system is free of any alteration or change like adding or removing mass, heat or work. Therefore the change in all P, V and U will be 0 or constant. A good example that is not in a lab is the universe. If we say the universe is an isolated system the energy can’t change which is the first law of thermodynamics, or the conservation of energy. Therefore in the universe energy can change forms or be transferred but it will not be lost or increased

noahgraham
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Re: Isolated system

Postby noahgraham » Sun Feb 05, 2023 9:35 pm

I think a real example would be kind of difficult to come up with but if you have a really special lockbox that's insulated and will not leak in any way then you have an isolated system. The box would be perfect at preventing energy and matter inside the system from interacting with the surroundings. Any heat or lack of it would be retained in the box and no matter would be able to exchange between the box and the surroundings.

Sydney Tanimitsu 2B
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Re: Isolated system

Postby Sydney Tanimitsu 2B » Sun Feb 05, 2023 9:50 pm

An isolated system does not exchange matter or energy with its surroundings. In open and closed system there is some exchange of matter or energy in those systems but with an isolated system there is no interaction with the surroundings.

George Kokotsis 2L
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Re: Isolated system

Postby George Kokotsis 2L » Sun Feb 05, 2023 10:04 pm

An isolated system is a system that does not exchange anything with its surroundings (heat,energy,matter). An emaple would be glucose in a bomb calorimeter.

Ashlinn_Limjoco_1I
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Re: Isolated system

Postby Ashlinn_Limjoco_1I » Fri Mar 17, 2023 4:34 pm

An isolated system is a system where nothing escapes. This is hard to visualize because this only happens in a lab, but a perfectly sealed lava lamp always has movement inside and energy exchange but no water or oil leaves the system . The main point is that nothing leaves or enters the perfectly sealed system.

Ashlinn_Limjoco_1I
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Re: Isolated system

Postby Ashlinn_Limjoco_1I » Fri Mar 17, 2023 4:35 pm

An isolated system is a system where nothing escapes. This is hard to visualize because this only happens in a lab, but a perfectly sealed lava lamp always has movement inside and energy exchange but no water or oil leaves the system . The main point is that nothing leaves or enters the perfectly sealed system.

Devin Ma 3A
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Re: Isolated system

Postby Devin Ma 3A » Fri Mar 17, 2023 7:04 pm

An isolated system is where nothing escapes the system and nothing from the surroundings can go into the system either. Neither heat or energy can go in or out of an isolated system. An example of an isolated system is tying up the end of a balloon. See the balloon as the system, when the balloon is already inflated with air and you then tie up the end of it, no heat energy can exchange between the inflated balloon and the outside environment around the balloon that plays the role as the surroundings. This will result into the case that neither matter or heat energy can go in or out of that inflated balloon.

Sofi Ghasemzadeh 2G
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Re: Isolated system

Postby Sofi Ghasemzadeh 2G » Mon Mar 20, 2023 11:11 am

An isolated system is one in which there is no loss or gain of either matter or energy between the system and its surroundings. Examples include a thermos, and interestingly enough, the universe, in that neither loses or gains matter or energy in any form with anything outside of it.


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