CHEM 1A Study Guide - Midterm Guide: Horse Length, Partial Pressure, Equilibrium Constant
Document Summary
Compressing a reaction mixture: according to le ch atelier "s principle , the composition will tend to change in a way that minimizes the resulting increase in pressure . example : i 2cg , t 2 icg , I mot creates 2 mot increases pressure so the equilibrium composition will tend to shift: concentration of diatomic molecules. Decrease when expands in favor of the reactant when compressed: compression will change each partial pressure that occurs in the expression for k when k remains constant. Temperature and equilibrium: exothermic reaction - pt would shift equilibrium mixture in favor of reactants ; k decreases, endothermic reaction - t t would shift equilibrium mixture in favor of products ; k increases. Oh: > o ( positive bracket) )- pt favors the product if endo rxn (cid:15482) in kf, > o , implying 2, and so k , s k , Opposite for exothermic , when 0 his o.
