## assuming no work

$\Delta U=q+w$

inlovewithchemistry
Posts: 104
Joined: Fri Sep 28, 2018 12:19 am

### assuming no work

When can you assume that no work is done on a system so that deltaU=heat?

Emmaraf 1K
Posts: 94
Joined: Sat Oct 20, 2018 12:16 am

### Re: assuming no work

If volume does not change then work is 0

lindsey_ammann_4E
Posts: 61
Joined: Fri Sep 28, 2018 12:26 am

### Re: assuming no work

Work is interpreted as energy used in the process of compression or expansion of a system. This means the value of work changes when the volume changes. For this reason, w=0 when there is no compression or expansion.

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