Calculate the equilibrium constant for each of the reactions in Problem 70.

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insert step 1> Identify the chemical equation for the reaction from Problem 70.

insert step 2> Write the expression for the equilibrium constant, K, using the formula: \( K = \frac{[products]^{coefficients}}{[reactants]^{coefficients}} \).

insert step 3> Determine the concentrations of the reactants and products at equilibrium.

insert step 4> Substitute the equilibrium concentrations into the equilibrium constant expression.

insert step 5> Simplify the expression to solve for the equilibrium constant, K.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Equilibrium Constant (K)

The equilibrium constant (K) is a numerical value that expresses the ratio of the concentrations of products to reactants at equilibrium for a given chemical reaction. It is temperature-dependent and provides insight into the extent of a reaction; a large K indicates a reaction that favors products, while a small K suggests a preference for reactants.

Le Chatelier's Principle

Le Chatelier's Principle states that if a dynamic equilibrium is disturbed by changing the conditions, the system will adjust itself to counteract the change and restore a new equilibrium. This principle helps predict how changes in concentration, pressure, or temperature will affect the position of equilibrium and, consequently, the value of K.

Reaction Quotient (Q)

The reaction quotient (Q) is a measure of the relative concentrations of products and reactants at any point in time during a reaction. It is calculated using the same formula as the equilibrium constant but with concentrations that are not necessarily at equilibrium. Comparing Q to K allows us to determine the direction in which a reaction will proceed to reach equilibrium.

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