Investigation of the reaction between hydrochloric acid and marble chips :: GCSE Chemistry Coursework Investigation

Investigation of the reaction betwixt hydrochloric acid and marble chipsA chemical reaction is when two or more substance called reactants argonchemically bonded to form a currentborn product, as a result of the process,for a reaction to take place, the particles essential micturate enough kineticenergy to jar and form tonic bonds , this is called a successfulcollision. The minimum amount of energy needed for a successfulcollision is activation energy, which is The energy that an atomicsystem must acquire before a process can occur. chemical substance reaction isdifferent to a physical reaction, chemical reaction atomic number 18 not reversibleand results in a new product, however a physical reaction can beeasily reversed as it only changed its state. The activation energy isable to loosen particles and enable them to from new bonds to constructnew products. The immediate the molecules are moving the bigger the stake of a successful collision, so the speedy and stronger t hereaction depart be , the more kinetic energy a reactant has the easierit is for the new bonds the collide and produce new bonds.Variables that you could changeConcentration of hydrochloric acidSurface area of chips the great unwashed of marble chipsPressureTemperatureVolume of hydrochloric acidTime allowed to measure atomic number 8 given ofVolume of gas collected vary the concentrationhigher(prenominal) concentration leave alone make the reaction stronger, thither allow bemore particles in the same volume so there are a lot more collisions,making the reaction faster and increase the chance of a successfulcollision, cut concentration makes a weaker reaction, there will befewer particles so less chance of a collision.Varying the pressureA higher amount of pressure will bring particles closer togethermaking the reaction faster as there will be more collision with theenergy, a lower amount of pressure will make the particles more spread honk , making the reaction slower and redu cing the amount of collisionand energy.Varying the surface areaA larger surface area will result in the number of particles toincrease so there will be a higher chance of a collision change magnitudethe rate of reaction , so the reactant broke into smaller pieces wouldreact faster oppose to larger pieces.Varying the temperatureAn increased temperature will increase the hasten of the particle sothey collide more frequent as they have more energy. Therefore thereaction will speed up, a reduced temperature will have less energyit will move slower, collide less often slowing the reaction down.Varying the catalystIf I increase the catalyst , the particles will move a lot faster asthe catalyst speeds up the rate of reaction, because they are moving