For an endothermic reaction $X \rightarrow Y$,the activation energies for the forward and backward reactions are $E_f$ and $E_b$ respectively. Then,in general:

  • A
    $E_b > E_f$
  • B
    $E_b < E_f$
  • C
    There is no fixed relationship between $E_b$ and $E_f$.
  • D
    $E_b = E_f$

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