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Equilibrium constant

Posted: Mon Feb 19, 2018 12:45 pm
by Naana Boateng 1I
what is the relationship between standard cell potential and equilibrium constant of a reaction.?

Re: Equilibrium constant

Posted: Mon Feb 19, 2018 1:07 pm
by Rachel Formaker 1E
Because ΔGo= -nFEo = -RTlnK,

-nFEo = -RTlnK

When standard cell potential is positive, K>1

When standard cell potential is negative, K<1

For positive Eo, larger the standard cell potential of a reaction, the larger the equilibrium constant.

Re: Equilibrium constant

Posted: Tue Feb 20, 2018 7:18 pm
by Guadalupe T 1E
Are Q and K interchangeable?

Re: Equilibrium constant

Posted: Tue Feb 20, 2018 8:05 pm
by Evelyn L 1H
no, K is the equilibrium constant while Q is when the rxn is not at equilibrium