CHEM 1062 Chapter Notes - Chapter 16: Reaction Mechanism, Reaction Intermediate, Enzyme
Document Summary
Chemical kinetics - the study of how fast reactants change in products; this focuses on reaction rate (the change in concentrations as a function of time) Rate = - units : moles per liter per second. Rate usually varies as a reaction proceeds (not linear: average rate is the slope of the line joining 2 points aking a graph of concentration. Instantaneous rate - the rate at a particular instant; average with an infinitely small delta t. Initial rate - instantaneous rate at the moment the reactants are mixed; found by finding the slope of the tangent line at t=0. The expression for the rate of a reaction and its numerical value depend on which substance serves as the reference. Rate law - expresses the rate as a function of reactant concentration and temperature aa+ bb ---> cc+ dd. K is the proportionality constant (rate constant) - specific for a given reaction at a given temp.
