Rates of Reaction :: GCSE Chemistry Coursework Investigation

An Experiment to destine the response between Hydrochloric vinegarish and Calcium CarbonateIntroductionHydrochloric paneling + Calcium Carbonate Calcium Chloride + CarbonDioxide + Water2HCl(aq) + CaCO3(s) CaCl2(aq) + CO2(g) + H20(l)In this try we will be investigating the variables that kittyaffect the speed of reaction between hydrochloric acid and calcium vitamin Cate. During this experiment carbon dioxide is produced. This iswhat we are deprivation to use to record the speed of reaction, for thequicker the reaction the faster carbon dioxide is produced.Variables=========A variable affects the rate of reaction between a image of chemicals.For a reaction to occur the jots have to collide with sufficient animation to break the bonds between them. This amount of energy neededis called Activation energy. In a reaction, only the particles withenergies above the Activation Energy will reasonableness a reaction.The different variables that could be used areText cuff Surface Area When a solid reacts with a mobile or gas, the stand up area of the solid particles makes a difference to the speed of the reaction. From the plot you can see that the three smaller particles have a big surface area all together (shown as blue) than the larger particle and so will react faster. There are more calcium carbonate particles on the the concentration of the hydrochloric acidText Box surface for the acid to react with. Powders of a Calcium carbonate react up to now faster as the of calcium carbonate particles showing to react with the acid particles is even greater. Crushing up the solid in an experiment can make a long experiment a lot faster and more violent. The reason that, with a larger surface area a solid reacts faster is that there are more particles showing for the liquid or gas to react with. Temperature===========This is one of the most effective slipway of speeding up the rate of areaction. From heating the chemical you are transferring energy intoth e particles. When particles do collide, they are more likely toreact, rather than only if bounce off each other(a), if they are movingfaster. When the particles have more energy they collide more oftenand with more force with the other chemical. With more collisions andwith a larger force it is more likely that the collisions will besuccessful. This means that the rate of reaction will be greater. agitate in heat can change the rate of the reaction. The first crimp onthe graph shows a reaction when the chemicals involved are of a low