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Questions and Answers
What is the law of mass action used to describe?
What is the mathematical expression of the law of mass action?
What does the equilibrium constant (K) represent in the law of mass action?
What is the significance of the equilibrium constant (K) being greater than 1?
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What is the effect of increasing the concentration of reactants on the equilibrium of a reaction?
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Study Notes
Law of Mass Action
- The law of mass action is used to describe the equilibrium of a reversible reaction, where the rates of forward and reverse reactions are equal.
Mathematical Expression
- The mathematical expression of the law of mass action is: K = [C]^c [D]^d / [A]^a [B]^b, where K is the equilibrium constant, and [A], [B], [C], and [D] are the concentrations of reactants and products, respectively.
Equilibrium Constant (K)
- The equilibrium constant (K) represents the ratio of the product of the concentrations of the products to the product of the concentrations of the reactants, at equilibrium.
Significance of K > 1
- When K is greater than 1, the equilibrium favors the formation of products, meaning that the reaction tends to proceed towards the products side.
Effect of Concentration on Equilibrium
- Increasing the concentration of reactants shifts the equilibrium to the right, favoring the formation of products, as the system attempts to reduce the concentration of reactants by forming more products.
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Description
This quiz covers the law of mass action, its mathematical expression, and the significance of the equilibrium constant (K) in chemical reactions.
