New highlights on analyzing first-order kinetic data of the peroxodisulfate-iodide system at different temperatures

Abstract

A pseudo-first order kinetic experiment examining the peroxodisulfate–iodide system was performed using an automated undergraduate chemistry lab experiment. The kinetic study was executed at different temperatures. This format makes it possible to calculate the activation energy of this reaction during the same lab exercise. Different calculation methods are compared to find the correct rate constant and absorption value at completion time for each temperature.