Reaction Kinetics

1.0 Aim To investigate the rate of answer of peroxydisulphate/persulphate ions, S2O82- with large exceed of single at a number of temperatures between 5?C to 35?C and to instruct the activation energy, Ea of the answer by using the Arrhenius Equation and plotting the graph of ln time against 1/ coercive temperature. The excess of iodide ions implies that the rate of answer only depends on the minginess of the persulphate ions. 2.0 Introduction Persulphate ions, S2O82- is a very powerful oxidising performer. some(prenominal) of the compounds that contain these ions ar sodium persulphate Na2S2O8, potassium persulphate K2S2O8 and ammonium persulphate (NH4)2S2O8. This oxidisng agent is capaciously use in manufacture industry. For example, sodium persulphate is apply as a bleach and detergent component whereas potassium persulphate is used as a food additive and in whisker dye. The wide usage of persulphate ions makes it important to understand the properties. The per sulphate compounds are loyal at room temperature and has melting point above cytosine?C. They are withal soluble in water. The reaction of persulphate ions with iodide ions which scientifically called the iodide quantify reaction is used to investigate the chemical energizing of the reaction.

By conducting the experiment the activation energy, Ea which is the minimum energy necessitate to mother a chemical reaction can be determined. crafty the Ea is important in erect to control a constitution such as the temperature required for a reaction to propose place within a specific time. For example, if the rea ction is low, gun can be added to speed up t! he reaction. This would also uphold the manufacturing company to reduce the costs of operation. 3.0 Theory The resolve of the experiment is to determine the Ea of the reaction of persulphate ions with iodide ions. The equation of the reaction is shown beneath: S2O82-(aq) + 2 I-(aq) 2 SO42-(aq) + I2(aq) (1) Meanwhile, the rate law can be written as shown below:...If you want to get a full essay, order it on our website: OrderCustomPaper.com

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