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NEET2013ChemistryChemical KineticsActual

A reaction having equal energies of activation for forward and reverse reactions has

Options

  1. AS=0
  2. BG=0
  3. CH=0
  4. DH= G= S=0

Correct answer

C. H=0

Step-by-step solution

Energy profile diagram for a reaction is as From the figure, it is clear that So, ( (E₂ )_b= (E₂ )_f+ H ( . ) as, ( (E₂ )_b= (E₂ )_f ) So, ( H=0 ). [Here (E₂ )_b= activation energy of backward reaction and (E₂ )_f= activation energy of forward reaction].

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