The Keq for the equilibrium below is 7.52 × 10-2 at 480 °C. 2Cl2 (g) + 2H2O (g) 4HCl (g) + O2 (g) What is the value of Keq at this temperature for the following reaction? 4HCl (g) + O2 (g) 2Cl2 (g) + 2H2O (g)

Chemical equilibrium is a state in which the concentrations of reactants and products in a chemical reaction do not change over time. This state is also known as dynamic equilibrium.  Here are some characteristics of chemical equilibrium: Forward and backward reactions: In a reversible reaction, the forward and backward reactions occur at the same speed. Constancy: At equilibrium, certain properties like concentration, density, pressure, and color remain constant. Fixed concentrations: At equilibrium, each reactant and product has a fixed concentration. Equilibrium constant: The ratio of... Show more

Chemical equilibrium is a state in which the concentrations of reactants and products in a chemical reaction do not change over time. This state is also known as dynamic equilibrium. 

Here are some characteristics of chemical equilibrium:
Forward and backward reactions: In a reversible reaction, the forward and backward reactions occur at the same speed.
Constancy: At equilibrium, certain properties like concentration, density, pressure, and color remain constant.
Fixed concentrations: At equilibrium, each reactant and product has a fixed concentration.
Equilibrium constant: The ratio of the product of the concentration of the products to the product of the concentration of the reactants is a constant quantity at a given temperature. This quantity is called the equilibrium constant. 

Some examples of chemical equilibrium include:
A bottle of fizzy drink
Hemoglobin, which transports oxygen around our bodies
 
The equilibrium condition of a system is altered if the concentration of one or more reactants changes, or if the temperature or pressure changes.

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