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

A reaction having equal energies of activation for forward and reverse reactions has
  1. $\Delta S=0$
  2. $\Delta G=0$
  3. $\Delta H=0$
  4. $\Delta H=\Delta G=\Delta S=0$

Solution

Energy profile diagram for a reaction is as From the figure, it is clear that
So, \(\left(E_2\right)_b=\left(E_2\right)_f+\Delta H\left(\right.\) as, \(\left(E_2\right)_b=\left(E_2\right)_f\)
So, \(\Delta H=0\). [Here $\left(E_2\right)_b=$ activation energy of backward reaction and $\left(E_2\right)_f=$ activation energy of forward reaction].

Asked in: NEET 2013 (All India)

Practice more Chemical Kinetics questions on Aicharya