The higher the temperature of the sodium thiosulphate the faster the :: GCSE Chemistry Coursework Investigation

The higher(prenominal) the temperature of the sodium thiosulphate the sudden the reaction of the two liquids.Information. fit in to the energizing possibility all matter is made up of tiny, occult particles that move all the time. When the temperature isincreased virtually or on these particles, the faster they move. Heavierparticles move more slowly than light ones at a minded(p) temperature.This theory defines the differences between solids liquids and gassesin a gas the particles move freely and at random in all the spaceavailable, in solids particles except vibrate around fixed positions andin liquids the particles have some liberty and bath move around eachother. Using the energising theory we throne explain changes in the state ofsubstances as they be het up(p) and cooled. We can also explaindissolving and diffusion using the kinetic theory. The kinetic theorysays that gases diffuse to fill up the space around them. Thisexplains how the smell of cooking can be smelt a ll everywhere the houseafter a short period of time. Its not just now gases that diffuse,diffusion occurs in liquids too. Diffusion involves the movement ofparticles from a region of higher concentration towards a region oflower concentration. The kinetic theory can be used to explain thefactors affecting the rates of reaction, this is an extension to thekinetic theory called the smasher theory. The collision theory saysthat Chemical reactions occur when particles of the reactants collide.They moldiness collide with a certain minimum energy, called the activationenergy.To summarise, the requirements for an effective collision (for achemical reaction to occur) The reactants essential collide with eachother, The molecules must have sufficient energy to initiate thereaction (called activation energy). supplyingThis experiment is to discover what affects rate of reaction. In thisexperiment there are two solutions used, Sodium Thiosulphate andHydrochloric Acid.(Sodium Thiosulphate + Hydrochloric Acid) (Na2S2O3 (aq) + 2HCl (aq)In this reaction, a fine precipitate of atomic number 16 slowly forms, tomeasure the rate of reaction, we time how long it takes to form theprecipitate. tail fin of the most common ways to influence the rate ofreaction can be explained using collision theory. They are ever-changingthe nature of the reactants, changing the concentration of one or moreof the reactants, changing the temperature at which a reaction isperformed, changing the surface area of a solid reactant, adding acatalyst.I have chosen to study how the rate of reaction changes when thetemperature of the sodium thiosulphate is varied.Before we could conduct the experiment there was some preliminary massageto be done. This was to find out what amount of each liquid would be