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NEET2010ChemistryChemical EquilibriumActual

In which of the following equilibrium K _C and K _ P are not equal ?

Options

  1. A2 NO ( g ) N ₂( ~g )+ O ₂( ~g )
  2. BSO ₂( ~g )+ NO ₂( ~g ) SO ₃( ~g )+ NO ( g )
  3. CH ₂( ~g )+ I ₂( ~g ) 2 HI ( g )
  4. D2 C ( s )+ O ₂( ~g ) 2 CO ₂( ~g )

Correct answer

D. 2 C ( s )+ O ₂( ~g ) 2 CO ₂( ~g )

Step-by-step solution

Key Idea The reaction for which the number of moles of gaseous products (n_ p . ) is not equal to the number of moles of gaseous reactants ( n _ R ) , has different value of K _ c and K _ p . (a) n _ P = n _ R =2 , thus, K _ p = K _ c (b) n _ P = n _ R =2 , thus, K_ p = K _ c (c) n _ P = n _ R =2 , thus, K _ p = K _ c (d) n_p=2, n_R=1 , thus, K_p K_c

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