## Work of the system

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

Katie Frei 1L
Posts: 64
Joined: Fri Sep 28, 2018 12:27 am

### Work of the system

When can you assume that the work of the system equals zero, or when no work is done?

Sarah Fatkin 4I
Posts: 71
Joined: Fri Sep 28, 2018 12:27 am

### Re: Work of the system

You can assume that the work of the system is zero when the system is at constant pressure and is not changing volume.

JiangJC Dis2K
Posts: 72
Joined: Fri Oct 12, 2018 12:16 am

### Re: Work of the system

You can assume the work of the system is zero when there is no change in volume, given that w=-pdeltav. Therefore w would equal zero since deltav equals zero.

Arshiya
Posts: 69
Joined: Fri Sep 28, 2018 12:16 am
Been upvoted: 1 time

### Re: Work of the system

You can assume work is equal to 0 in a vacuum where the external pressure is 0