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For the reaction, N 2 O 4 ( g ) ⇌ 2 N O 2 ( g ) the degree of dissociation at equilibrium is 0.4 at a pressure of 1 atm. The value of K p is

Options

  1. A0.64 atm
  2. B0.60 atm
  3. C0.19 atm
  4. D0.762 atm

Correct answer

D. 0.762 atm

Step-by-step solution

K p = P N O 2 2 P N 2 O 4 = 4 α 2 1 - α 2 × P ⇒ K p = 4 × 0.4 2 1 - 0.4 2 × 1 ∴ K p = 0.762 a t m

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