In a redox reaction, the reduction potential E depends on the ratio of product concentrations ([C] and [D]) to reactant concentrations ([A] and [B]), as per equation E = E°' - 60 (mV/n) log [C][D]/[A][B]. What would be the effect of increasing the ratio of products to reactants by a factor of 10?
A) No effect: E°' assumes 1-M concentrations of reactants and products.
B) A change of -60 mV will not modify the estimate of E.
C) The value of E will decrease by 60 mV, decreasing energy yield.
D) The value of E will increase by 60 mV, increasing energy yield.
E) The E°' term is unaffected by changes in concentrations of products or reactants.

Question

In a redox reaction, the reduction potential E depends on the ratio of product concentrations ([C] and [D]) to reactant concentrations ([A]  and  [B]), as per equation E  =  E°'  -  60  (mV/n)  log  [C][D]/[A][B]. What would be the effect of increasing the ratio of products to reactants by a factor of 10?
A) No effect: E°' assumes 1-M concentrations of reactants and products.
B) A change of -60 mV will not modify the estimate of E.
C) The value of E will decrease by 60 mV, decreasing energy yield.
D) The value of E will increase by 60 mV, increasing energy yield.
E) The E°' term is unaffected by changes in concentrations of products or reactants.

Quizplus · Accepted Answer

The Answer is C

In a Redox Reaction, the Reduction Potential E Depends on the Ratio