JEE Chemistry · Medium

Electrochemistry: Nernst equation MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

Timer-based practiceDetailed answer reviewMobile-friendly flow
Nernst equationMediumQuestion 710006

Question

The Nernst equation for a cell reaction at 298 K is E = E° − (0.0592/n) log Q. For n = 2 and Q = 100, E − E° is:
  1. A
    −0.0592 V
    Correct
  2. B
    +0.0592 V
  3. C
    −0.1184 V
  4. D
    +0.1184 V

Correct answer

−0.0592 V

Explanation

E − E° = −(0.0592/2) log 100 = −(0.0296)(2) = −0.0592 V.