Determination of a Rate Equation Essay -- GCSE Chemistry Coursework In

Determination of a appreciate EquationRate equivalence has the form tramp = k AxBy which shows how the swanof a chemical reception depends on the stringency of the reactants(A&B) and the regularize constant k. The rate equation commonly indicateswhat species are involved in the rate-determining step and how manyspecies are involved.A rate equation is used to describe how the concentration of a intersectionincreases or the concentration of the reactants decreases with time,the equation also indicates how the concentration of one or morereactants directly affects the rate. Occasion all(prenominal)y it john even be theconcentration of a product that affects the rate. In general the rateequation for the reception A + B C + DIs found by investigate to follow simple kinetics with the rateequation being pen asRate = k AxByk = rate constant, x = holy order with respect to A, y = order withrespect with B.There are one-third orders of responses, zero order, first order and san ction order.Zero order = the rate does not depend upon the concentration of thereactant. The rate of reaction is fixed. Doubling or tripling theconcentration of the reactant specifys no difference to the rate. ThusRate of reaction = k or rate of reaction = kA0.First order = the rate of reaction depends directly upon theconcentration of the reactant. If the concentration of the reactant isdoubled, the rate doubles, thusRate of reaction = kA or rate of reaction = kA1Second order = the rate of reaction depends directly upon the squareof the concentration of the reactants. If its concentration isdoubled, its rate of reaction quadruples. ThusRate of reaction = kA2 The graph below shows zero, first and second order reactions and howchanges in the co... ...ean that the concentration would be altered so this wouldnt work.Also when doing the experiment the temperature was not always constantin the environment and in the solution. This could have affected therate of reaction by slightly r eactions happening faster and some slowerthan the others. To improve this i could make sure all the solutionswere at the same temperature before starting the reaction. This would indeed ensure that the test was being conducted fairly and that way icould propose more accurate results.To improve the experiment and minimise errors I can try and devise abetter method that would ensure that all of the above errors were decreased.When measuring out my solutions I was taking readings from below themeniscus, this reduced the numbers of errors in my results.REFERENCES Cambridge chemistry 2 text book Letts revisal guide. Class notes.