The universe

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Phi Phi Do 2E
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Joined: Fri Sep 29, 2017 7:05 am

The universe

Postby Phi Phi Do 2E » Sun Jan 28, 2018 9:43 pm

Why is the universe an isolated system?

lindsay lathrop 2C
Posts: 29
Joined: Sat Jul 22, 2017 3:00 am

Re: The universe

Postby lindsay lathrop 2C » Sun Jan 28, 2018 9:48 pm

The universe is an isolated system because neither matter or energy can be exchanged/transferred in or out. Yes, there are no rigid walls or insulation but it is still considered an isolated system as the most important definition is that matter and energy cannot be exchanged. The universe includes everything, so if it includes everything it can only interact within itself.

CalebBurns3L
Posts: 47
Joined: Fri Sep 29, 2017 7:07 am

Re: The universe

Postby CalebBurns3L » Fri Feb 02, 2018 12:33 pm

Assuming that the universe contains everything in existence, then the universe would indeed be an isolated system because no energy or matter can leave the system of "everything in existence."

Warda Sahib 2J
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Joined: Thu Jul 13, 2017 3:00 am

Re: The universe

Postby Warda Sahib 2J » Sun Feb 04, 2018 10:01 pm

Because no energy or matter can be transferred

Kayla Tchorz-Dis 1F
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Joined: Thu Jul 13, 2017 3:00 am

Re: The universe

Postby Kayla Tchorz-Dis 1F » Sun Feb 04, 2018 10:47 pm

The universe is isolated because we consider it to be everything in existence, therefore it cannot lose energy or matter to anything else.

Kevin Ru 1D
Posts: 50
Joined: Thu Jul 13, 2017 3:00 am

Re: The universe

Postby Kevin Ru 1D » Sun Feb 04, 2018 11:00 pm

You might be getting confused with the entire universe vs the "observable" universe. The entire universe is isolated because it contains everything by definition, and has no surroundings as a result. It literally is everything. However, if you are referring to the universe that we can see, then you could argue that it is an open system as there are "boundaries" we have not yet overcome in which matter and energy can freely pass through. Hope that helps!

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

Re: The universe

Postby Christina Cen 2J » Sun Feb 04, 2018 11:54 pm

nothing can be exchanged outside the universe because nothing outside the universe exists

Annie Lieu-1H
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Re: The universe

Postby Annie Lieu-1H » Mon Mar 12, 2018 9:47 am

As of now, the universe is the ultimate surrounding that contains everything. So there is nothing outside to exchange with.

Clarissa Molina 1D
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Joined: Fri Sep 29, 2017 7:04 am

Re: The universe

Postby Clarissa Molina 1D » Mon Mar 12, 2018 2:49 pm

Would a 20mL vial filled with an organic solvent be open or isolated? and why?

Ishita Monga 1B
Posts: 31
Joined: Thu Jul 27, 2017 3:00 am

Re: The universe

Postby Ishita Monga 1B » Mon Mar 12, 2018 4:27 pm

Clarissa Molina 1D wrote:Would a 20mL vial filled with an organic solvent be open or isolated? and why?


A vial would be an open system because it can exchange both heat and matter with its surroundings. If the vial was closed, it would be a closed system. If the vial was closed and insulated, it would be an isolated system.


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