What Affects the Rate of Reaction? :: Reaction Rates Energy Science Essays

What Affects the Rate of Reaction?HypothesisTo form a reply the ingredients essential collide in high speed. Thefaster the particles collide the to a greater extent energizing life force is produced. Thisproduces a bigger reaction.There are five happen upon variables that affect the rate of a reaction (inthis case with a immobile and a solution)* transfigure in temperatureAn increase in heat energy within the particles leads to more kineticenergy. Therefore there is more conflict of particles and itincreases the rate of the reaction. When we decrease the amount ofheat energy, this will evidently lento down the reaction. For examplewe slow down the process of our food corruption by placing it in a fridgeor a freezer.* Change in concentrationThe concentrations of acidulateds are classed in molars, so 2m would quite astrong concentrated acid, 0.5m would be a very dilute wispy acid and 1mwould be in between the two. Also, the more concentrated the acid, themore particles it c ontains, so there is more of a chance forcollisions.* Change of particle sizeIncreasing the surface plain of the particles would lead to morecollision. We do this by making the particles smaller. For instancepeeling a large stump spud would not take as long as peeling quaternity smallpotatoes this is because the smaller potatoes have a larger surfacearea for you to peel.* Pressure (for gases only)Increasing the pressure would bring particles closer together so therewould be more of a chance for collision.* CatalystA catalyst lowers the activation of energy required, consequentlythere being a faster reaction.The three variables we are choosing to show which effect the rate ofreaction in our experiments are* Particle size* Concentration* TemperaturePressure was unfitting to use as a variable, because we were notusing two gases and a catalyst was unsuitable to use for small ladderslike these. I theorise that the tests in changing the temperature willhave the fastest clips, as th e hotter a solution is the more theparticles will move and collide, thus the rate of light speed dioxide beingproduce will be faster. I also cipher that the large particles testwill take the slowest amount of time because of the lack of surfacearea and the reverse will occur with the test with powered calciumcarbonate.PlanWe will be running a various number of experiments to prove whateffects the rate of reaction with calcium carbonate (marble chips) andhydrochloric acid. The balanced equation for these reactants alongwith the productsCalcium carbonate + hydrochloric acid calcium chloride + carbon dioxide + water2 2 3 2