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

question 48

Multiple Choice

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.

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Definitions:

Error Score

The difference between the observed score and the true score.

True Score

The true score in measurement theory is the actual score that perfectly reflects the corresponding attribute or quantity without any measurement error.

Observed Score

The actual score or value obtained from measuring or testing an individual's performance or trait.

Error Impact

Refers to the effect that inaccuracies in data or calculations can have on the results of a study or analysis.