question_answer

If \[{{E}_{f}}\] and \[{{E}_{r}}\] are the activation energies of forward and reverse reactions and the reaction is known to be exothermic, then

A)                 \[{{E}_{f}}>{{E}_{r}}\]

B)                 \[{{E}_{f}}<{{E}_{r}}\]

C)                 \[{{E}_{f}}={{E}_{r}}\]

D)                 No relation can be given between \[{{E}_{f}}\] and \[{{E}_{r}}\] as data are not sufficient