CHEM 1214 Lecture Notes - Lecture 2: Equilibrium Constant, Reaction Quotient, Partial Pressure
15 Sep 2016
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If q > kc the reaction runs left to reach equilibrium. If q = kc the reaction is at equilibrium. If q < kc the reaction runs right to reach equilibrium: examples: Answer: right: increased volume = decreased q = run to right. If the value of the reaction quotient is close to the value of the equilibrium constant for the reaction, the reaction is already close to equilibrium. In other words, the change in partial pressures (x) will be very small compared to the initial partial pressures. This means that we can ignore any x that is added or subtracted from another partial pressure: to confirm, plug x back into the equation and make sure that the k values are the same. d. If they are not the same, plug in the value calculated in the first approximation as into the x that is added to or subtracted from another concentration. K for reverse reaction: kforward = 1/kreverse.
