CHEM 1110 Lecture Notes - Lecture 9: Dinitrogen Tetroxide, Dynamic Equilibrium, Equilibrium Constant
16 Feb 2017
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Independent of process by which it was prepared. Dynamic balance of forward and reverse processes. No equil: spontaneous reaction in direction that leads to equil. Law of mass action and dynamic balance. Rate of no2 loss: k subf [no2]^2. Rate of no2 gain: k subr [n2o4] Rate of no2 loss=rate of no2 gain. Doesnt depend on initial concentration of reactnats and products. K eq is really big: product concentration is large compared to reactant (right side) Keq is close to unit: both p and r are in significant amounts at equil. Over concentration of reactants raised to coefficients. Reaction is written backwards, equil constant is inverted. Equil constant is product of equil constants of old equations. Equil constant is raised by same power. Concentration in mixture is proportional to partial pressure. Equil constant can be expressed as ratio of partial pressure of gases. K sub c and k sub p. K p =k c when delta n = 0.
