CHEM104 Lecture Notes - Lecture 14: Solution, Equilibrium Constant
11 Apr 2016
School
Department
Course
Professor
Document Summary
Reacions with not dissolved substances: rules. Substances dissolve into a phase are included in the equilibrium equaion (aqueous substances) Substances which are pure and thus not dissolved are not included in the equilibrium equaion (such as h2o) Solvent concentraions remain essenially constant and so are included in the equilibrium constant, not the equilibrium equaion. Mass acion equaions can include both molar concentraions and pressures of products and reactants. General relaionship between kc and kp: aa+bb+others= mm+nn+others, kc= kp(rt)-change n gas, kp=kc(rt)+change n gas. Where change in ngas= moles of gas in products-moles of gas in reactants. Rules: reacion moves away from an added reactant or product and vice versa, a substance can be removed from a. Soluion phase (aq) or (l) by precipitaion (s) or gas (g) evoluion. Gas phase (g) by condensaion (aq) or (l) or precipitaion (s) As p increases, a reacion moved toward the least number of gas moles.
