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For the reaction, H subscript 2 end subscript plus I subscript 2 end subscript rightwards harpoon over leftwards harpoon 2 H I comma the equilibrium concetratio of H subscript 2 end subscript comma blank I subscript 2 end subscript and HI are 8.0, 3.0 and 28.0 mol/L respectively. The equilibrium constant of the reaction is

  1. 32.66  
  2. 34.33  
  3. 22.44  
  4. 11.22  

The correct answer is: 32.66

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