Activation energy#!#Arrhenius Equation

Arrhenius equation is

Arrhenius equation is

Arrhenius equation is:

Write short notes on : (i) Activation energy (ii) Arrhenius equation.

Consider the given plots for a reaction obeying Arrhenius equation (0^(@)CltTlt300^(@)C) : (k and E_(a) are rate constant and activation energy, respectively)

Consider the given plots for a reaction obeying Arrhenius equation (0^(@)C lt T lt 300^(@)C) : (k and E_(a) are rate constant and activation energy, respectively) Choose the correct option :

The rate constant is given by Arrhenius equation. k=Ae^(-E_(a)//RT) Calculate the ratio of the catalysed and uncatalysed rate constants at 25^(@)C if the energy of activation of a catalysed raction is 162 kJ and for the uncatalysed reaction the value is 350 kJ

Arrhenius studies the effect of temperature on the rate of a reaction and postulted that rate constant varies with temperature exponentially as k=Ae^(E_(a)//RT) . Thuis method is generally used for finding the activation energy of a reaction. Keeping temperature constant, the effect of catalyst on the activation energy has also been studied. The pre-exponetial factor in the Arrhenius equation of a first order reaction has the unit :