A reaction vessel is charged with hydrogen iodide, which partially decomposes to molecular hydrogen and iodine: 2HI (g) H2(g) + I2(g) When the system comes to equilibrium at 425 °C, PHI = 0.708 atm, and PH2 = PI2 = 0.0960 atm . The value of Kp at this temperature is __________.

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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