Using internal or external conditions


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MHarrold_1E
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Joined: Wed Sep 30, 2020 9:47 pm
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Using internal or external conditions

Postby MHarrold_1E » Mon Feb 08, 2021 11:55 am

I sometimes get confused if I should use the pressure/volume/temperature of the system or the surroundings. Is there a rule of thumb that I should know or could help? Thank you!
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Kiran Singh 3A
Posts: 100
Joined: Wed Sep 30, 2020 9:41 pm

Re: Using internal or external conditions

Postby Kiran Singh 3A » Mon Feb 08, 2021 11:58 am

I believe that most of the time, we will use the pressure/volume/temp of the system. For irreversible pathways, external pressure is often used (the pressure of the surroundings). For reversible pathways, we usually use the system's values.
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Susanna Givan 2B
Posts: 144
Joined: Thu Feb 27, 2020 12:16 am

Re: Using internal or external conditions

Postby Susanna Givan 2B » Sun Mar 14, 2021 10:51 pm

You want to use the system's conditions!
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Nick P 3D
Posts: 115
Joined: Wed Sep 30, 2020 9:42 pm

Re: Using internal or external conditions

Postby Nick P 3D » Sun Mar 14, 2021 10:54 pm

You always want to use the system's conditions for reversible pathways.
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