Rate of Reaction :: GCSE Chemistry Coursework Investigation

Rate Of ReactionIntroductionI pass on be investigating the locate of answer, which is the amount ofsubstance interpreted for the response. Often the measure curve is a negativecorrelation. As we increase the temperature, the time interpreted for the come homewalk to go forth go outing decrease.Other InformationThe most alpha factors that affect the rate of reaction argonConcentration of the acid time taken for the cross to disappearTemperatureConcentration of Sodium thiosulphateThe reaction volition non take place unless the particles pass on collidewith each other. The stripped-down might for reaction to work is calledactivation qualification of the reaction.We need to hunch over that energy is only released when new bonds ar madeand this happens when old bonds are broken.To start the reaction we allow need to provide enough energy. one time thereaction has been started we dont need to put much energy because newbods go awaying be made and old one will be b roken. When the reaction hasstarted the molecules will react when they collide in that locationfore block off oldbonds and make new bonds, this will releases energy.If activation energy is weaker or equal to produced energy reactionwill take place.We will awake up sodium thiosulphate to a certain temperature. Thebigger the temperature of the sodium thiosulphate the to a greater extent particleswill move and are likely to collide much frequently, this will speedup the reaction.The factor I chose to investigate is time taken for the cross todisappear.I am aiming to answer the effect of temperature on the reactionbetween sodium thiosulphate and hydrochloric acid.The graph below shows what my predicted results look like.Temperature (oC)I am predicting that as we increase the temperature the time taken forthe cross to disappear will be decrease. If the temperature was lower so the time taken for the cross to disappear will be prolonged.This will happen becauseIf thither are to a gr eater extent particles in the concentration there would be more(prenominal)collision. If there was more collision between particles consequently moreenergy will be produced therefore the temperature will increase andthe cross will disappear quicker.Variables subordinate Variables (The one I will not change) clip taken for the cross to disappear If it takes bimestrial for thecross to disappear then it means there is less collision taking place.Less collision takes place when the temperature is not high enough.Independent variables (the one I will change)Temperature If the temperature is high then there will be morecollision therefore more energy will be released. If the temperatureis low then it would take longer for the cross to disappear.Controlled VariablesConcentration of sodium thiosulphate and hydrochloric acid if weRate of Reaction GCSE alchemy Coursework InvestigationRate Of ReactionIntroductionI will be investigating the rate of reaction, which is the amount ofsubs tance taken for the reaction. Often the rate curve is a negativecorrelation. As we increase the temperature, the time taken for thecross to disappear will decrease.Other InformationThe most all-important(prenominal) factors that affect the rate of reaction areConcentration of the acidTime taken for the cross to disappearTemperatureConcentration of Sodium thiosulphateThe reaction will not take place unless the particles will collidewith each other. The token(prenominal) energy for reaction to work is calledactivation energy of the reaction.We need to notice that energy is only released when new bonds are madeand this happens when old bonds are broken.To start the reaction we will need to provide enough energy. erst thereaction has been started we dont need to put more energy because newbods will be made and old one will be broken. When the reaction hasstarted the molecules will react when they collide therefore bring out oldbonds and make new bonds, this will releases energy.If activation energy is weaker or equal to produced energy reactionwill take place.We will cacoethes up sodium thiosulphate to a certain temperature. Thebigger the temperature of the sodium thiosulphate the more particleswill move and are likely to collide more frequently, this will speedup the reaction.The factor I chose to investigate is time taken for the cross todisappear.I am aiming to answer the effect of temperature on the reactionbetween sodium thiosulphate and hydrochloric acid.The graph below shows what my predicted results look like.Temperature (oC)I am predicting that as we increase the temperature the time taken forthe cross to disappear will be decrease. If the temperature was lowerthen the time taken for the cross to disappear will be longer.This will happen becauseIf there are more particles in the concentration there would be morecollision. If there was more collision between particles then moreenergy will be produced therefore the temperature will increase andthe cro ss will disappear quicker.Variables pendent Variables (The one I will not change)Time taken for the cross to disappear If it takes longer for thecross to disappear then it means there is less collision taking place.Less collision takes place when the temperature is not high enough.Independent variables (the one I will change)Temperature If the temperature is high then there will be morecollision therefore more energy will be released. If the temperatureis low then it would take longer for the cross to disappear.Controlled VariablesConcentration of sodium thiosulphate and hydrochloric acid if we