If a unimolecular reaction, A(g) toProducts, takes place according to the mechanism (I) A+Aoverset(k_(1))underset(k_(-1))(hArr)A^(a)+A (II) A^(a)underset(k_(2))(to)P where k_(1), k_(-1) and k_(2) are the rate constants and P, A and A^(a) stand for product molecule, normal molecule of reactant and activated molecules of reactant and activated molecules of reactant respectively. The order 'n' initial concentration a_(0) and time of half reaction t_(1//2), for a reaction are related as

If a unimolecular reaction, A(g) toProducts, takes place according to

1.	If a unimolecular reaction, A(g) toProducts, takes place according to the mechanism (I) A+Aoverset(k_(1))underset(k_(-1))(hArr)A^(a)+A (II) A^(a)underset(k_(2))(to)P where k_(1), k_(-1) and k_(2) are the rate constants and P, A and A^(a) stand for product molecule, normal molecule of reactant and activated molecules of reactant and activated molecules of reactant respectively. The order 'n' initial concentration a_(0) and time of half reaction t_(1//2), for a reaction are related as
Answer» `LN t_(1//2)=ln("constant")-(N-1)lna_(0)` `t_(1//2)lnn=ln("constant")+lna_(0)` `ln t_(1//2)=lnn+ln("constant")-lna_(0)` `ln t_(1//2)=n lna_(0)` ANSWER :A