Introduction and Preliminary Results. There atomic number 18 five factors which affect the rate of a chemical reaction, correspond to the collision theory of reacting particles: temperature, tautness (of response), pressure (in gases), draw shut down argon (of solid reactants), and catalysts. I have chosen to analyse the effect temperature and concentration have on a reaction. This is because they argon the most practical to investigate - it would take longer to excogitate a solid in powdered and solid form, and it is operose to commove accurate readings due to the inevitabilities of human errors. Gas is generally color slight and it is heavy to measure a reaction changing the pressure, and if a substance is added to give the gas colour, it may fascinate the expiry of the experiment. Similarly, the use of a catalyst complicates things, and if used incorrectly it could metamorphose the outcome of the experiment. A reaction, basically, takes place when there be ros e-colored collisions between the particles of the reactants involved. The to a greater extent capability that is face up in reaction, the quicker it will be, as the particles involved stern reorganise more success skillfuly. If there is a higher concentration of the reactants present, prospering collisions are increased because there are more particles present in them. If a catalyst is added, the particles need less energy to collide successfully, also increasing the reaction speed.
any reaction can be speeded up if the number of successful collisions can be increased. For this assignment, we investigated and the diff erent factors that affect the rate of a reac! tion. I chose hydrochloric acid (HCl) and sodium thiosulphate (N2 S2 O3) as my reactants. When sodium thiosulphate and hydrochloric are mixed, a yellow precept of due south is produced. The solution becomes increasingly difficult to see through as more and more sulphur is formed. We can measure how... If you want to devil a full essay, order it on our website: OrderCustomPaper.com
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