Dynamic Equilibrium.

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Presentation transcript:

Dynamic Equilibrium

Quantitative vs. Reversible So far we have studied quantitative reactions, reactions which proceed until the limiting reactant is consumed However, many reactions are not quantitative, they are reversible meaning they can proceed in both forward and reverse directions

Dynamic Equilibrium When the rate of the forward reaction and the reverse reaction are balanced, the system is in dynamic equilibrium This does NOT mean that nothing is happening!

Properties of Equilibrium Systems Macroscopic properties (e.g. colour, pressure, concentration, pH) are constant. I.e. It appears as if nothing is changing Closed systems Forward rate = Reverse rate Can be establish from either direction

Practice! P. 428 #1-5