Studies on the Kinetics of the Decomposition of the Chloro-complex of Cerium(IV) in Sulphuric Acid Medium

The reaction between cerium (IV) and chloride ion proceeds through the initial formation of a red-colour­ed complex which is unstable and decomposes gradually. The kinetics of the decomposition reaction obeys the first-order law. The activation energy calculated is 19.35 kcal/mole. H2SO4 retards the rate of the de-­composition of the complex