Reversible v. Irreversible


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Mayvera Doaran 2H
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Joined: Fri Sep 25, 2015 3:00 am

Reversible v. Irreversible

Postby Mayvera Doaran 2H » Wed Feb 10, 2016 12:35 am

For entropy, which equations do you use for isothermal reversible vs. irreversible free expansion? What does free expansion mean?

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Re: Reversible v. Irreversible

Postby Chem_Mod » Wed Feb 10, 2016 12:54 am

If it's isothermal and reversible you can use . If it were to irreversible free expansion (no external pressure, thus work=0), by the second law of thermodynamics the entropy of the universe is increasing.

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