List of top Chemistry Questions on Chemical Kinetics asked in KBPE

The half-life of a first-order reaction depends on:

The initial concentration of the first order reaction:

N2O5 (g) → 2NO2 (g) + 1/2 O2 (g)

was 1.24 × 10⁻² mol L⁻¹ at 300 K. The concentration of N2O5 after 60 minutes was 0.20 × 10⁻² mol L⁻¹.

Calculate the rate constant of the reaction at 300 K.

(i) Define activation energy.
(ii) Explain the effect of catalyst on the rate of chemical reaction.