For example, in decomposition of N2O5, the time taken for half of the
original amount of material to decompose is 12 min at 50oC, 5 h at
25oC and 10 days at 0oC You also know that in a mixture of potassium
permanganate (KMnO4) and oxalic acid (H2C2O4), potassium
permanganate gets decolourised faster at a higher temperature than
that at a lower temperature It has been found that for a chemical reaction with rise in
temperature by 10°, the rate constant is nearly doubled The temperature dependence of the rate of a chemical reaction can
be accurately explained by Arrhenius equation (3