chemical kinetics Flashcards
importance of chemical kinetics
evaluation and quantification of drug stability
determination of shelf life and storage conditions
reaction rate
the rate of a chemical reaction quantifies the speed of formulation of the products over time
empirical approach to reaction rate
rate = change in concentration per unit time
since the rate may change a lot during a very short time scale the instantaneous rate may be observed as inst rate =d[P]/dt
reaction rate-experimental determination
the rate constant is a characteristic specific to the reaction. its value is independent of the concentration of the reactants but does depend on temperature
fast reactions have large K values while slow reactions have small K values
what does the order of a reaction reflect
the order of a reaction reflects how the rate changes on changing reactant concentration