10.23 - Chemistry 102B Discussion Worksheet #16 Chemical...

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Chemistry 102B – Discussion Worksheet #16 Chemical Equilibrium Up until now we have assumed that all reactions proceed to completion. In reality, most reactions fall short of completion (i.e. there is some amount of all reactants and products present at the “end” of the reaction). Equilibrium is established when the rate of the forward and reverse reactions are equal. Equilibrium is a dynamic process. The forward and reverse reactions are still occurring when equilibrium is reached, but at the same rate. Equilibrium is quantified with the equilibrium constant expression K . For example: K = [C] c [D] d [A] a [B] b K is a unitless quantity and is calculated by multiplying the concentrations of the products raised to their stoichiometric coefficients and dividing by the concentrations of the reactants raised to their stoichiometric coefficients. K is a constant as long as temperature is constant. Equilibrium position
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10.23 - Chemistry 102B Discussion Worksheet #16 Chemical...

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