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JEE Main20206 Sep 2020Evening ShiftChemistryChemical EquilibriumActual

The value of K c   us   64   at   800   K for the reaction N 2 g + 3 H 2 g → 2   NH 3   g The value of K c for the following reaction is : NH 3   g → 1 2   N 2   g + 3 2   H 2   ( g )

Options

  1. A1 / 64
  2. B8
  3. C1 / 4
  4. D1 / 8

Correct answer

D. 1 / 8

Step-by-step solution

N 2 g + 3 H 2 g ⇌ 2 NH 3 g K C = NH 3 2 N 2 H 2 3 = 64 For the reaction NH 3 g ⇌ 1 2 N 2 g + 3 2 H 2 g K ' C = N 2 1 / 2 H 2 3 / 2 NH 3 = 1 K C = 1 64 = 1 8

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