Question

Activation energy of a chemical reaction can be determined by

(a) evaluating rate constants at two different temperatures

(b) evaluating velocities of reaction at two different temperatures

(c) evaluating rate constant at standard temperature

(d) changing concentration of reactants.

Answer 1

Correct option (a) evaluating rate constants at two different temperatures

Explanation :

According to Arrhenius equation:

k₁ and k₂ are rate constants of the reaction at two different temperatures T₁ and T₂ respectively.

Therefore, t_1/2 is independent of initial concentration.