Chemistry 1302A/B Lecture Notes - Lecture 7: Equilibrium Constant, Chemical Equation, Enthalpy
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Some processes proceed both forward and reverse directions. Equal forward and reverse rates liquid vapour. Note: a system at equilibirum is not static. Equilibrium has to do with rate (giving it some time, equilibrium will always be reached) When we square the pressure (or concentration) of the products, and divide it by the pressure (or concentration) of the reactants, we end up with a constant. Kc (concentration of kp (pressure) at a given temperatiure homogeneous equilibrium. when everything is in the same phase hereogeneous equilibrium, when everything is not in the same state. With this kind of equilibirum, somethimes quantity doesn"t matter. When we"re using this chemical equalition, we often take the gaseous phases and ignore the solid phases in our calculations. The equilibirum equation aa + bb -> cc + dd. K = concentration (or pressure) of products / concentration (or pressure) of reactants k = ([c]c[d]d) / ([a]a[b]b)