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

The higher(prenominal) the temperature of the atomic number 11 thiosulphate the meteoric the reaction of the two liquids.Information. fit to the energising possibleness all matter is made up of tiny, concealed particles that move all the time. When the temperature isincreased or so or on these particles, the faster they move. Heavierparticles move more slowly than light ones at a given(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 single vibrate around fixed positions andin liquids the particles have some freedom and toilet move around eachother. Using the kinetic theory we john explain changes in the state ofsubstances as they atomic number 18 het up 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 coo king can be smelt all everyplace the houseafter a short period of time. Its not simply 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 moldinessiness collide with a certain minimum energy, called the activationenergy.To summarise, the requirements for an effective collision (for achemical reaction to occur) The reactants must collide with eachother, The molecules must have sufficient energy to initiate thereaction (called activation energy). intendThis experiment is to discover what affects rate of reaction. In thisexperiment there are two solutions used, Sodium Thiosulphate andHydrochloric Acid.(Sodium T hiosulphate + Hydrochloric Acid) (Na2S2O3 (aq) + 2HCl (aq)In this reaction, a fine precipitate of sec slowly forms, tomeasure the rate of reaction, we time how long it takes to form theprecipitate. quintette of the most common ways to influence the rate ofreaction can be explained using collision theory. They are 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 field of studyto be done. This was to find out what amount of each liquid would be