## Activity

$PV=nRT$

Meigan Wu 2E
Posts: 66
Joined: Fri Sep 28, 2018 12:29 am
Been upvoted: 1 time

### Activity

What does $P^{\circ}$ mean in the equation for activity?

melodyzaki2E
Posts: 61
Joined: Fri Sep 28, 2018 12:18 am

### Re: Activity

I think thats supposed to be a representation of the units, bars, thats used when solving the equilibrium constant using pressure. I'm not sure though.

Posts: 65
Joined: Fri Sep 28, 2018 12:17 am

### Re: Activity

We don't need to worry much about that since in his videos Lavelle said that we don't need to know anything about activity in undergrad

Melissa Bu 1B
Posts: 36
Joined: Fri Sep 28, 2018 12:19 am

### Re: Activity

Instead of using activity, we use molarities (concentration) in our calculations of the equilibrium constant value which is a close approximation to activities (more accurate but harder to measure).