Chemistry · Electrochemistry
Consider a general redox reaction whose standard cell potential is calculated using: E° = RTnF ln K. If experimental measurements show that the computed E° value is about 10% different from the measured potential at 298 K, which of the following factors is most likely responsible for this discrepancy?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Wrong estimation of the number of electrons transferred (n)
- 2Neglecting activity coefficients in calculating K (i.e., using concentrations instead of activities)✓
- 3A systematic error in temperature measurement during the experiment
- 4The concept that the ideal gas constant (R) changes dramatically with temperature
Correct answer
Neglecting activity coefficients in calculating K (i.e., using concentrations instead of activities)
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