Reversible vs Irreversible


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Steven Chau 1B
Posts: 21
Joined: Fri Sep 29, 2017 7:07 am

Reversible vs Irreversible

Postby Steven Chau 1B » Sat Mar 17, 2018 8:15 pm

Can someone explain why w=-PdeltaV is irreversible, whereas w=-nRTln(V1/V2) is reversible?
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Maria Bajenov 1I
Posts: 28
Joined: Fri Sep 29, 2017 7:06 am

Re: Reversible vs Irreversible

Postby Maria Bajenov 1I » Sat Mar 17, 2018 8:18 pm

w= -PdeltaV takes into account that the external pressure is constant. It produces less work than a reversible reaction because for the reversible reaction, exceptions are made that allow the system to be viewed as not losing energy to other factors.
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