CHM 104 1st Edition Lecture 10 Outline of Last Lecture I Kc versus Kp II Heterogeneous equilibria III Equilibrium Calculations Outline of Current Lecture IV Q versus K V Value of Q Current Lecture Q versus K The reaction quotient Q is a fast way to calculate if a reaction is at Equilibrium and if not which way the reaction will proceed to get to equilibrium aA bB cC dD Q represents ratio of s at any moment K represents ratio of s at equilibrium only Value of Q The value of Q is calculated from reactant and product and them compared to K If Q K then the reaction is at equilibrium If Q K then the reaction system has too much product present the reaction proceeds to use those products to make more reactants If Q K then the reaction system has too much reactant present the reaction proceeds to use those reactants to make more products These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute If Q K use up products If Q K use up reactants If Q K system is at equilibrium In all cases reaction proceeds until Q K Example H 2 F2 2HF Kp 120 A mixture contains 0 100 atm H2 0 200 atm F2 0 400 atm HF Is it at equilibrium
View Full Document
Unlocking...