Reaction Kinetics

1.0 Aim To investigate the rate of reception of peroxydisulphate/persulphate ions, S2O82- with large outdo of single at a number of temperatures between 5?C to 35?C and to instruct the activation energy, Ea of the response 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 reaction only depends on the minginess of the persulphate ions. 2.0 Introduction Persulphate ions, S2O82- is a very powerful oxidising element. 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 use as a bleach and detergent component whereas potassium persulphate is used as a food additive and in vibrissa dye. The wide usage of persulphate ions makes it important to understand the properties. The p ersulphate compounds are immobile at room temperature and has melting point above ampere-second?C. They are too soluble in water. The reaction of persulphate ions with iodide ions which scientifically called the iodide quantify reaction is used to investigate the chemical kinetic of the reaction.

By conducting the experiment the activation energy, Ea which is the minimum energy requisite 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 reaction is low, gun can be added to speed u! p the reaction. This would also uphold the manufacturing company to reduce the costs of operation. 3.0 Theory The aspiration of the experiment is to determine the Ea of the reaction of persulphate ions with iodide ions. The equation of the reaction is shown down the stairs: 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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