CHEM 101 Lecture Notes - Lecture 19: Reaction Rate, Chemical Reaction, Reagent
11 Nov 2016
School
Department
Course
Professor
Document Summary
Chemical reaction rate: the rate at which reactants are consumed or products are produced in a given time period in a chemical reaction, factors that affect the reaction rate: Includes the physical state of each reactant (s,l,or g) and the particle size. When reactants are all the same physical state, reaction rate is generally faster between liquid-state reactants than between solid-state reactants and is fastest between gaseous-state reactants. For reactants in the solid state, reaction rate increases as subdivision of the solid increases. When the particle size of a solid is extremely small, reaction rates can be so fast that an explosion results. An increase in the concentration of a reactant causes an increase in the rate of the reaction. There are more molecules of that reactant present in the reaction mixture; thus collisions between this reactant and other reactant particles are more likely. Reaction rate increases as the temperature of the reactants increases.
