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For the reaction 2 H I ( g ) ⇌ H 2 ( g ) + I 2 ( g ) . The value of K c is 4. If 2 mol of H 2 , 2 mol of I 2 and 2 mol of HI are present in one litre container then moles of I 2 present at equilibrium is:

Options

  1. A0.8
  2. B3.2
  3. C2.4
  4. D4.4

Correct answer

C. 2.4

Step-by-step solution

k c = 4 = 2 + x 2 2 - 2 x 2 2 = 2 + x 2 - 2 x X = 0.4 Mol of I 2 at equilibrium = 2 + 0.4 = 2.4

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