sbc 200 Lecture Notes - Lecture 6: Chemical Equilibrium

• School: Athabasca University
• Department: biotechnology
• Course: sbc 200
• Professor: idk

Document Summary

All reactions are reversible and under suitable conditions will reach a state of equilibrium. At equilibrium, the concentrations of products and reactants no longer change because the rates of the forward and reverse reactions are equal. K reflects a particular ratio of product concentrations to reactant concentrations for a reaction. A small value for k indicates that the reaction yields little product before reaching equilibrium. A large value for k indicates that the reaction reaches equilibrium with very little reactant remaining. Gives the ratio of product concentrations to reactant concentrations at any point in a reaction. For an overall reaction that is the sum of two more individual reactions: Qoverall = q1 x q2 x q3 x and. Koverall = k1 x k2 x k3 x. A hetereogeneous equilibrium involves reactants and/ or products in different phases. Pure solids and liquids are omitted from the expression for q or k.