Isolated systems

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FrankieClarke2C
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Joined: Fri Sep 28, 2018 12:28 am

Isolated systems

Postby FrankieClarke2C » Tue Jan 29, 2019 9:51 am

In an isolated system, are we assuming that it is constant volume?

Dimitri Speron 1C
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Re: Isolated systems

Postby Dimitri Speron 1C » Tue Jan 29, 2019 11:40 am

An isolated system does not necessarily have constant volume, but it could. Isolated just means that there is no exchange of heat or matter with the surroundings.

Patrick Cai 1L
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Joined: Fri Sep 28, 2018 12:25 am

Re: Isolated systems

Postby Patrick Cai 1L » Tue Jan 29, 2019 3:37 pm

If needed, say there is a gaseous phase reactant or product in the system, the question would typically make a note to say either pressure or temperature is constant.

Amy Dinh 1A
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Joined: Fri Sep 28, 2018 12:23 am

Re: Isolated systems

Postby Amy Dinh 1A » Tue Jan 29, 2019 3:53 pm

An isolated system is a system that has no contact with its surroundings, but it may or may not have a fixed volume, depending on its conditions.

Philipp_V_Dis1K
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Re: Isolated systems

Postby Philipp_V_Dis1K » Wed Jan 30, 2019 11:05 am

An isolated system's internal energy stays constant or increases, so it's unlikely for it to have a changing volume

Megan_Ervin_1F
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Re: Isolated systems

Postby Megan_Ervin_1F » Wed Jan 30, 2019 1:38 pm

A good example of an isolated system would be a bomb calorimeter no energy is exchanged with the surroundings

Miya Lopez 1I
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Re: Isolated systems

Postby Miya Lopez 1I » Wed Jan 30, 2019 4:03 pm

How could the volume change in an isolated system? Would the system just expand on its own?

Zubair Ahmed 1L
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Re: Isolated systems

Postby Zubair Ahmed 1L » Wed Jan 30, 2019 7:02 pm

An isolated system juts implies that that there is no exchange of energy or matter with the surroundings. An isolated system could have a constant volume but it is not necessary.

Esther Lee 4H
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Re: Isolated systems

Postby Esther Lee 4H » Thu Jan 31, 2019 12:05 pm

I think it just means that there is little to no chance of the system being affected by the surroundings

Cynthia Aragon 1B
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Re: Isolated systems

Postby Cynthia Aragon 1B » Thu Jan 31, 2019 12:14 pm

An isolated system refers to a system that does not exchange matter, heat, or work with the surroundings. Thus, what remains constant as time progresses is the mass and total energy of the system.

shaunajava2e
Posts: 66
Joined: Fri Sep 28, 2018 12:26 am

Re: Isolated systems

Postby shaunajava2e » Thu Jan 31, 2019 2:42 pm

An isolated system is a thermodynamic system that cannot exchange either energy or matter outside the boundaries of the system. An isolated system differs from a closed system by the transfer of energy. Closed systems are only closed to matter, energy can be exchanged across the system's boundaries.


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