CHEM 1061 Chapter Notes -Elementary Reaction, Spectator Ion, Collision Theory
Document Summary
Chemical kinetics: study of rates of chem reactions (rxns), factors that affect these rates, and sequences of molecular steps (rxn mechanisms) Catalyst: substance that speeds up rxn but not changed/used up in rxn: not a spectator, like spectator ions. Goal of chem kinetics: want to measure & predict chem rxn rates. Rate of a rxn measured in concentration (m = mol/l) per unit of time; change in molarity/change in time; always positive. T) = 1/c ( [c]/ t) = 1/d ( [d]/ t) Average rate of reaction: previous methods up there show average rate, b/c rxn starts fast and then slows down. Concentration of reactant faster the reaction goes. Instantaneous rates of rxn: check amt of stuff left in very short time intervals and calculate rate t approaches 0 derivatives! Initial rate of rxn: instantaneous at beginning of rxn. Basically reactant rates are negative and product rates are positive. 13. 4) the rate law of a chem rxn.
