## Pressure

$E_{cell} = E_{cell}^{\circ}-\frac{RT}{nF}\ln Q$

Bilal Pandit 1J
Posts: 98
Joined: Wed Sep 11, 2019 12:16 am

### Pressure

Why does pressure matter for an electrolytic cell? Since they are all concentrations or solids, why would it matter what the pressure is?

Brian Tangsombatvisit 1C
Posts: 119
Joined: Sat Aug 17, 2019 12:15 am

### Re: Pressure

For cells that involve gases, such as hydrogen gas or chlorine gas, the pressure of these species matters. In these cases, the partial pressures of gases would probably be used over concentrations. Depending on the partial pressures, E would differ because of the nernst equation, E = Enot - (RT/NF)lnQ

nicole-2B
Posts: 103
Joined: Fri Aug 30, 2019 12:18 am

### Re: Pressure

Brian Tangsombatvisit 1C wrote:For cells that involve gases, such as hydrogen gas or chlorine gas, the pressure of these species matters. In these cases, the partial pressures of gases would probably be used over concentrations. Depending on the partial pressures, E would differ because of the nernst equation, E = Enot - (RT/NF)lnQ

Thank you for this explanation!!

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