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Is there a way specific way to approach into seeing if open closed or isolated?

Posted: Tue Jan 16, 2018 10:11 pm
by Fenared Ortiz 3K
Is there a specific way to figure out if a real life example is open closed or isolated? Some of the examples get harder, but i understand what each one of them is .

Re: Is there a way specific way to approach into seeing if open closed or isolated?

Posted: Tue Jan 16, 2018 10:46 pm
by Patricia Macalalag 2E
Are you referring to 8.1?

Re: Is there a way specific way to approach into seeing if open closed or isolated?

Posted: Tue Jan 16, 2018 10:56 pm
by RyanTran2F
I think you should just look at whether or not energy is moving from one place to another. If it is then the system is closed and if not then it is an isolated system.

Re: Is there a way specific way to approach into seeing if open closed or isolated?

Posted: Wed Jan 17, 2018 2:59 pm
by OliviaShearin2E
To elaborate on what Ryan said, a closed system allows the movement of energy but not mass. An open system allows the movement of energy and mass.

Re: Is there a way specific way to approach into seeing if open closed or isolated?

Posted: Thu Jan 18, 2018 5:46 pm
by Matt_Fontila_2L_Chem14B
First, determine what the system and its surroundings are. Then figure out whether mass and energy can be transferred from the system to its surroundings and vice versa.

Re: Is there a way specific way to approach into seeing if open closed or isolated?

Posted: Thu Jan 18, 2018 9:49 pm
by Melodie Oh 2A
Open system has transfer of heat and material; closed system has transfer of heat but not the transfer of material; isolated system has no transfer of heat or material.

Re: Is there a way specific way to approach into seeing if open closed or isolated?

Posted: Thu Jan 18, 2018 10:08 pm
by SantanaRodriguezDis1G
for example a pot on the oven with no lid is open, a pot on the oven with a lid is closed, and a really good thermal cup wouldn't allow for the transfer of energy or matter so it would be isolated

Re: Is there a way specific way to approach into seeing if open closed or isolated?

Posted: Sat Jan 20, 2018 1:23 pm
by Manvir2K
Dr. Lavelle's Examples:
Open: beaker of water because water can evaporate and no insulation is involved
Closed: sealed beaker of water because no evaporation or insulation is involved
Isolated: combustion of glucose I na bomb calorimeter because nothing is exchanged with the surroundings

Re: Is there a way specific way to approach into seeing if open closed or isolated?

Posted: Mon Jan 22, 2018 7:53 pm
by Leanne Wong 1H
you should always consider if first energy is being transferred such as heat/work then it narrows down the possible systems to the open or closed system. after you have to consider if matter is being transferred from the system to the surrounding.

Re: Is there a way specific way to approach into seeing if open closed or isolated?

Posted: Tue Jan 23, 2018 7:44 pm
by Erik Khong 2E
I think the only real way to tell is if it's a concealed system or not. Then if it's thermally-insulated or the like. It's hard to determine it with any "specific way" or any tricks.