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MHT CET202618 April 2026Morning ShiftChemistryElectrochemistryActual

For a certain redox reaction in galvanic cell X _ (s) + Y ²⁺_ (aq) X ²⁺_ (aq) + Y _ (s) , E ^ cell is 0.0296 V at 298 K . What is equilibrium constant of reaction?

Options

  1. A1
  2. B10
  3. C100
  4. D1000

Correct answer

B. 10

Step-by-step solution

The relation between standard cell potential and equilibrium constant at 298 K is given by: E^ _ cell = 0.0591 n K_c For the given reaction, the number of electrons transferred is n = 2 . Substituting the given values: 0.0296 = 0.0591 2 K_c 0.0296 0.02955 K_c K_c = 0.0296 0.02955 1 K_c = 10^1 = 10 Answer: 10

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