## Hotdog Midterm #6

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

katherinemurk 2B
Posts: 68
Joined: Wed Nov 15, 2017 3:02 am

### Hotdog Midterm #6

If you start at 100 L and end at 100 L then volume for the entire process is unchanging so if delta V is equal to 0 doesnt work = 0??

Andrea Zheng 1H
Posts: 61
Joined: Fri Sep 28, 2018 12:26 am

### Re: Hotdog Midterm #6

Because work is not a state property, you can't only look at the initial and final state. You would have to add up all the work done in each step of the pathway to get the total work done.

Ian Marquez 2K
Posts: 66
Joined: Fri Sep 28, 2018 12:16 am
Been upvoted: 2 times

### Re: Hotdog Midterm #6

This reasoning would be correct for state functions like delta S (entropy) and delta U (internal energy). However, w (work) and heat (q) are path functions and are not just dependent on starting and end values.