CHM 102 Chapter Notes - Chapter 14.1-14.4: Reaction Rate Constant, Rate Equation, Reaction Rate
Document Summary
Chemical kinetics field of chemistry that specializes with speeds or rates of. Reaction rate speed at which a chemical reaction occurs. There are different types of reaction rates and they can be identified with experimental information which help determine the type of reaction mechanism. Reaction mechanisms overall view of the process from reactant to product. 14. 1 factors that affect reaction rates: physical state of the reactant- reaction rate is determined by the collision of molecules, homogeneous mixtures all gases or liquids, heterogeneous mixtures reactants are in different phases. *greater the frequency of collisions, the higher the reaction rate* Speed change over a period of time. In the u. s. the speed of cars is measured in mph which shows position (miles) divided by time (hours) The change in concentration (molarity) divided by time (seconds) Average rate of reaction = in concentration / in time. Reaction rates typically decrease throughout the reaction because the concentration of the reactants decrease throughout the process.
