## Nonexpansion work vs expansion work

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

Ryan Danis 1J
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Joined: Fri Sep 28, 2018 12:18 am

### Nonexpansion work vs expansion work

What is the difference between expansion work and non-expansion work?

Ashley Bouma 1F
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Joined: Fri Sep 28, 2018 12:21 am

### Re: Nonexpansion work vs expansion work

expansion work means there was work done in order to change the volume/pressure of something so you would use w=-PdeltaV, and non-expansion work doesn't involve a change in volume like motional or electrical work in which you use Gibbs free energy

Tony Ong 3K
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Joined: Fri Sep 28, 2018 12:23 am

### Re: Nonexpansion work vs expansion work

you can also think of it as expansion work is done by the system to the environment therefore the value for work is negative.

Amar Singh
Posts: 31
Joined: Fri Sep 28, 2018 12:20 am

### Re: Nonexpansion work vs expansion work

The simplest way to think about it that expansion work involves volume (something is being expanded) and nonexpansion work is all other types of work