Factors Affecting the Decomposition of Marble Buildings by Acid Rain :: GCSE Chemistry Coursework Investigation

Factors Affecting the Decomposition of Marble Buildings by dot RainBackgroundAcid RainNitrogen acids and sulphur dioxides diminish out of tall chimneys andvehicles. These go into the air, and air currents carry the gases apart, and they react with irrigate vapour and oxygen. This produces H2SO4(sulphuric acid) and HNO3 (nitric acid). The acids become part of acloud, and it falls down to earth, as acid rain or snow. This stooge endup miles away from the original source. The acid rain re functionsnutrients from soil, so plants can not secure to them, so this eventuallykills surrounding die. It can withal get into lakes and rivers, whichcan kill lean. The same is true for acid snow as it kills fish inrivers and lakes.Rates of chemical responsesThis is how quick a answer is, you can consider out the rate of areaction by seeing how a lot of it is used up in a particular amount oftime. You could similarly measure how much is produced as a result of thereaction in a particular a mount of time.Reactions take place because of meetings, the particles (can beatoms, ions or molecules) collide, and a reaction occurs betweenparticles. If in that respect are more(prenominal) strikings, the reaction will be muchquicker. But it to a fault depends on whether the collision has enough cypher, to be favored. If at that place is not enough energy, whence thecollision will be unsuccessful, but if there is, it will besuccessful, and a reaction will occur. Unsuccessful collisions takeplace when the activation energy is not reached. The activation energyis the amount of energy needed for a successful collision.There are factors which affect the rate of a reaction, and also if thecollisions are successful or not. Temperature rise gives particlesmore energy, and as thy move around more and much quicker they havecollisions. Also it gives particles more energy, so that when theycollide the collisions are more successful. Both these things meanthat there is a faster reactio n rate. But, if temperature decreasesthere is a slower reaction rate, as there is less energy. If there islarger surface area, it also means that reactions are quicker. Thereason for this is that there are more particles undetermined to take partin collisions. So the more collisions means, more successfulcollisions, and a faster reaction rate. If surface area is decreased,then there are fewer exposed particles, therefore a slower reactionrate.Also concentration, affects reaction rate. In gases it is thepressure. If there is a greater concentration, then there are moreparticles in the same volume.