engineering chemistry MCQ #2775

For a cell reaction involving 2 electrons, the E⁰_cell = 1.23 V at 25°C. The equilibrium constant is

engineering chemistry MCQ #2775

  1. Question 1

    Q1. For a cell reaction involving 2 electrons, the E⁰_cell = 1.23 V at 25°C. The equilibrium constant is

    • A) 1.66 × 10⁴⁰
    • B) 3.33 × 10⁴⁰
    • C) 1.66 × 10²⁰
    • D) 3.33 × 10²⁰

    Answer: 1.66 × 10⁴⁰

    Explanation: Using log Kc = nE⁰ / 0.0591, where n = 2, E⁰ = 1.23 V, we get log Kc = 41.62, so Kc = 1.66 × 10⁴⁰.