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AIIMS2018ChemistryChemical Equilibrium

If for the reaction, 2 ICl I ₂+ Cl ₂ ; K_c=0.14 and initial concentration of ICl is 0.6 M then equilibrium concentration of I ₂ is

Options

  1. A0.37 M
  2. B0.128 M
  3. C0.224 M
  4. D0.748 M

Correct answer

B. 0.128 M

Step-by-step solution

2 ICl I ₂+ Cl ₂ Initial 0.6 0 0 At eqm : 0.6-2 x x x aligned & K_c=0.14= [ I ₂ ] [ Cl ₂ ] [ ICl ]^2 = x^2 (0.6-2 x)^2 & 0.37= x 0.6-2 x 0.222-0.74 x=x & 1.74 x=0.222 x=0.128 M aligned

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