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Manipal MET2015ChemistryChemical Equilibrium

Equivalent amounts of H ₂ and I ₂ are heated in a closed vessel till equilibrium is obtained. If 80 % of the hydrogen can be converted to HI, the K_C at this temperature is

Options

  1. A64
  2. B16
  3. C0.25
  4. D4

Correct answer

A. 64

Step-by-step solution

H ₂+ I ₂ 2 HI array lccc At initial & 1 & 1 & 0 At equili & 1-0.8 & 1-0.8 & 2 0.8 & =0.2 & =0.2 & =1.6 array array ll & K_C= [ HI ]^2 [ H ₂ ] [ I ₂ ] & K_C= 1.6 1.6 0.2 0.2 & K_C=64 array

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