Adding H20 to solution

Moderators: Chem_Mod, Chem_Admin

Bryce Ramirez 1J
Posts: 120
Joined: Sat Aug 24, 2019 12:16 am

Adding H20 to solution

Postby Bryce Ramirez 1J » Sat Mar 14, 2020 10:49 pm

When adding water to either the cathode or anode half of a solution, why does this decrease the overall Ecell? Would the reverse for this apply to, where taking away solution would increase the overall Ecell?

vpena_1I
Posts: 109
Joined: Sat Aug 24, 2019 12:15 am

Re: Adding H20 to solution

Postby vpena_1I » Sun Mar 15, 2020 5:47 am

What it is doing is decreasing the concentration of the solution. Diluting the anode will increase the cell potential, and diluting the cathode will decrease the cell potential.

ValerieChavarin 4F
Posts: 99
Joined: Wed Sep 18, 2019 12:18 am

Re: Adding H20 to solution

Postby ValerieChavarin 4F » Sun Mar 15, 2020 7:02 am

The effect of the dilution depends on where it is occurring. If the cathode is diluted then the cell potential decreased. However, if the anode is dilution there is an increase in cell potential.

KHowe_1D
Posts: 103
Joined: Thu Jul 25, 2019 12:15 am
Been upvoted: 1 time

Re: Adding H20 to solution

Postby KHowe_1D » Sun Mar 15, 2020 7:15 am

H2O decreases the concentration of the solution. A cathode being diluted would decrease the cell potential but an anode being diluted would increase the cell potential.


Return to “Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams”

Who is online

Users browsing this forum: No registered users and 4 guests