## Reversibility

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

K Phelan 3D
Posts: 23
Joined: Wed Sep 21, 2016 2:59 pm

### Reversibility

How do you determine if a reaction is reversible or not? Does this information have to be given to you?

Diana Catapusan 1N
Posts: 21
Joined: Fri Jul 15, 2016 3:00 am

### Re: Reversibility

Usually, problems will state if they are reversible or irreversible. Some hints to know if they are reversible are when delta Stotal is equal to zero, making delta Ssystem=-delta Ssurroundings, and when temperature is constant, while volume increases and pressure decreases. Hope this helps!

Josephine_Tang_1N
Posts: 30
Joined: Wed Sep 21, 2016 2:57 pm

### Re: Reversibility

I was in a UA review session and he said that usually the adiabatic (q=0) is irreversible--just another note!