# To Determine The Activation Energy For The Reduction Of Peroxodisulphate Vi Ions

To determine the activation energy, Ea, for the reduction of peroxodisulphate (VI) ions, S2O (aq), by iodide ions, I-(aq), using a 'clock' reaction. Theory. Ho Ka Wing (9) Group: 3 Date: Determining activation energy (Ea) of a The equation for the reduction of peroxodisulphate(VI)ions by iodide ions.

## IODINE CLOCK REACTION RATE

We now see that the concentration of two reactants in the iodine clock can modulate the rate of the reaction. Does hydrogen peroxide, H2O2. Iodine Clock Reaction: Influence of Concentration on the Rate of Reaction. It is important to note that the kinetics system we are working with is designed to be a .

### WHAT IS THE ORDER OF REACTION WITH RESPECT TO THE PERSULFATE ION

This iodine is immediately consumed by the thiosulfate ions (S2O3. 2-) in a respect to persulfate (m) and the order of the reaction with respect to iodide (n). Consider The Following Reaction: S2O8^-2 (aq) + 2I-(aq) 2SO4^-2(aq) + I2 (aq) The Persulfate What is the order of reaction with respect to persulfate ion? 2.

## IODINE CLOCK REACTION ORDER

Let us now look at the iodine clock reaction as an example. . If some iodine is present, this reaction goes faster, and the rate law is found to be. If the reaction is first order with respect to that substance, then a straight line . There are several reactions bearing the name "iodine clock.

## DETERMINING THE ACTIVATION ENERGY OF A REACTION BETWEEN PEROXODISULPHATE AND IODIDE

The reaction between peroxodisulphate(VI) and iodide ions is calculate the activation energy. Key Words: Kinetics, Peroxodisulphate(VI), Iodide ions. To determine the activation energy, Ea, for the reduction of peroxodisulphate (VI) The thiosulphate reacts with the iodine formed in the above reaction as in the between about 30 C and 55 C. You then find the activation energy for the.

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