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irreversible v reversible
Posted: Tue Feb 19, 2019 3:10 pm
by Karina Koo 2H
Why does S total increase with irreversible but not reversible?
Re: irreversible v reversible
Posted: Tue Feb 19, 2019 3:19 pm
by Jaira_Murphy_2D
yes, I think S tot for a reversible process is = to 0
Re: irreversible v reversible
Posted: Tue Feb 19, 2019 3:37 pm
by josie 1C
If it is a reversible process (and it goes back to the original state) the change in entropy is 0. Since it has returned to its original state, there is no overall change in entropy for reversible processes.
Re: irreversible v reversible
Posted: Tue Feb 19, 2019 6:40 pm
by ChathuriGunasekera1D
Hi! If it's a reversible process, you know that S has to change to something because the process cannot return to its original state.
Re: irreversible v reversible
Posted: Wed Feb 20, 2019 4:46 pm
by 005113695
Since S is a state function, the path it takes doesn't matter, therefore if it returns to the original state, entropy is 0.