What is the effect of adding $Kr$ (krypton) gas at equilibrium while keeping the volume of the system constant?

  • A
    If $n = 0$,the backward reaction occurs.
  • B
    If $n = +ve$,the forward reaction occurs.
  • C
    If $n = -ve$,the forward reaction occurs.
  • D
    There is no effect on the value of $n$.

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