question_answer

In a reaction at \[27{}^\circ C,{{10}^{-3}}\]% reactant molecules manage to cross over the barrier of transition state. The energy of these molecules in excess of the average value will be \[(R=2cal\text{ }{{K}^{-1}}\text{ }mo{{l}^{-1}})\]:

A) \[6.91\text{ kc}al\text{ }mo{{l}^{-1}}\]   

B) \[3.00\text{ kc}al\text{ }mo{{l}^{-1}}\]

C) \[4.15\,kcal\,mo{{l}^{-1}}\]      

D) \[5.10kcal\,mo{{l}^{-1}}\]