Chemical kinetics 1

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

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

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

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