Oct 20, 2006 21:02
Many of the relationships between concentration of reactants and temperature and how they affect rate of reaction, reaction constant and, reaction order can be observed in the graphs provided. As can be seen in the graph of concentration vs. time, which shows the rates of reaction for various initial concentrations the higher the initial concentration the higher the initial rate. Temperature too will affect initial rate, as shown in the graphs of constant initial concentration at different temperatures the higher the temperature the faster the reaction proceeds, so it can be said that the higher the temperature the higher the initial rate is. But unlike changing the initial concentration where the constant remains constant, changing the temperature results in a different constant. To determine the constant the rates of reaction of different initial concentrations at constant temperature can be compared, giving a constant at that temperature. The overall reaction order is not changed however, by changing temperature or initial concentration as can be seen in the Ln[concentration] graph of CH3Cl the overall reaction order does not change with temperature as all plots of the reaction for the various temperatures are linear, not only indicating a first order reaction, but that it is a first order reaction at all the temperatures shown.