## A system doing no work

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

Sanjana Borle 2K
Posts: 111
Joined: Fri Aug 09, 2019 12:15 am

### A system doing no work

How do we know that a system is not doing work on the surroundings? Would the only case for this be that the system is not expanding?

Posts: 100
Joined: Wed Sep 18, 2019 12:19 am

### Re: A system doing no work

The systems we deal with now only have work when they expand or get compressed.

Subashni Rajiv 1K
Posts: 101
Joined: Wed Sep 18, 2019 12:16 am

### Re: A system doing no work

In a closed system, energy cannot be transferred to the surroundings.

Elizabeth Harty 1A
Posts: 125
Joined: Sat Jul 20, 2019 12:16 am

### Re: A system doing no work

I might be wrong but I think work is only done when there is a volume change.

Robert Tran 1B
Posts: 118
Joined: Thu Jul 11, 2019 12:15 am

### Re: A system doing no work

So far in the course, the only form of work we have learned is the system expanding and pushing against the surroundings.