## calculating entropy of irreversible and reversible expansion reactions

$\Delta S = \frac{q_{rev}}{T}$

Alicia Lin 2F
Posts: 83
Joined: Wed Sep 18, 2019 12:17 am

### calculating entropy of irreversible and reversible expansion reactions

I know for calculating work, there are different equations used for reversible vs irreversible reactions. What are the different equations used to calculate entropy of reversible and irreversible reactions?

Ryan Lee 1E
Posts: 50
Joined: Sat Aug 17, 2019 12:16 am

### Re: calculating entropy of irreversible and reversible expansion reactions

I'm not sure about entropy changes in direct relation with reversible and irreversible reactions, but I know that under certain conditions, you can use the equations of nRln(v2/v1) and nCln(T2/T1) to calculate entropy change. These equations were from wednesday's lecture, and they're derived either by using deltaS = q/T or ds=dq/T.