## irreversible work [ENDORSED]

$w=-P\Delta V$
and
$w=-\int_{V_{1}}^{V_{2}}PdV=-nRTln\frac{V_{2}}{V_{1}}$

Lauryn Jordan 1F
Posts: 76
Joined: Fri Sep 29, 2017 7:07 am

### irreversible work

for irreversible expansions, do you use you use w= -p delta v?

Chem_Mod
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### Re: irreversible work  [ENDORSED]

Yes, you can use that expression.

mayapartha_1D
Posts: 50
Joined: Fri Sep 29, 2017 7:07 am

### Re: irreversible work

Yes you use that equation! Also remember that reversible work does more work than irreversible work, as the area underneath the curve is greater.

Kyung_Jin_Kim_1H
Posts: 53
Joined: Thu Jul 27, 2017 3:00 am

### Re: irreversible work

Conceptually, why does reversible expansion do more work. I know the curves but I don't understand why they are like that (the reversible curve makes sense since each change in Pex has a corresponding V, but the irreversible one confuses me).

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