Chem P4 eelctrode potential help

[ammarelahi]

Please I need help with J10 chem p41 q5 part (a) iii ??

 

[zeebujha]

it would be easier if you could attach the question!

 

[ammarelahi]

Here is the link to the paper http://www.xtremepapers.me/CIE/Internat ... _qp_41.pdf

 

[ammarelahi]

anybody ?? do we have to look at the reversible equations or the reactions occuring at the electrodes ?

 

[ParanoidAleveler]

Look at the half equations for the electrodes.
For the cathode,
Increasing OH shifts equilibrium to the right, more electrons are produced, so E will be more negative

For anode,
Increasing OH shifts equilibrium to the left, again, more electrons are produced, so E will again, be more negative.


Hope that helped.