Chemical kinetics 2

In chemical kinetics, only a small fraction of colliisons lead to reactions. This is because

Which reaction order obeys the expression T_(1//2) = 1/(K .A ) in chemical kinetics ........?

With respect to the equation, k = Ae^(-Ea/RT) in chemical kinetics, which one of the following statements is correct?

A study of chemical kinetics of the reaction, A+B to Products, gave the following data at 25^@ C . find : The order of reaction with respect to A.