Chemical Equilibrium. AP Chapter 15. Chemical Equilibrium. Chemical Equilibrium occurs when opposing reactions are proceeding at equal rates. It results in the formation of an equilibrium mixture of the reactants and products of the reaction. The composition mixture does not change with time.
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AP Chapter 15
Kc = equilibrium constant
[D]d[E]e ← products
[A]a[B]b ← reactants
The equilibrium pressure of CO2 (g) is the same in both bell jars, at the same temperature. The equilibrium constant expression is Kp = PCO2.
Predicting the direction of a reaction by comparing Q and K.
The effect of adding H2 to an equilibrium mixture of N2, H2 and NH3.