A certain endothermic reaction: Ararr Product, DeltaH=+ve proceeds in a sequence of three elementary steps with the rate constants K_(1), K_(2) and K_(3) and each one having energy of activation E_(a), E_(2) and E_(3) respectively at 25^(@)C. The observed rate constant for the reaction is equal to K_(3) sqrt(K_(1)/K_(2)). A_(1), A_(2) and A_(3) are Arrhenius parameters respectively. For the reaction, H^(.)+^(.)CH_(2)CH_(3)overset(K)(rarr) CH_(3).CH_(3), a chain termination step of the reaction: 2C_(2)H_(6)rarr CH_(2)=CH_(2)+H_(2), the activation energy and Arrhenius parameter can be given as:

A certain endothermic reaction: Ararr Product, DeltaH=+ve proceeds in

1.	A certain endothermic reaction: Ararr Product, DeltaH=+ve proceeds in a sequence of three elementary steps with the rate constants K_(1), K_(2) and K_(3) and each one having energy of activation E_(a), E_(2) and E_(3) respectively at 25^(@)C. The observed rate constant for the reaction is equal to K_(3) sqrt(K_(1)/K_(2)). A_(1), A_(2) and A_(3) are Arrhenius parameters respectively. For the reaction, H^(.)+^(.)CH_(2)CH_(3)overset(K)(rarr) CH_(3).CH_(3), a chain termination step of the reaction: 2C_(2)H_(6)rarr CH_(2)=CH_(2)+H_(2), the activation energy and Arrhenius parameter can be given as:
Answer» (a) `0, K` (b) `0, E_(a)` (C ) `A, 1` (d) `1, K` Solution :For a FREE radical combination, `E_(a)=0`