
For the same reaction and temperature as in Worked Example 15.11, calculate the equilibrium concentrations of all three species if the starting concentrations are as follows: [H2] = 0.00623 M, [I2] = 0.00414 M, and [HI] = 0.0424 M.

Interpretation:
The HI equilibrium constant (Kc) values should be calculated given the respective molar concentration of reactants and products at
Concept Introduction:
Equilibrium constant (K): Concentration of the products to the respective molar concentration of reactants it is called equilibrium constant. If the K value is less than one the reaction will move to the left side and the K values is higher (or) greater than one the reaction will move to the right side of reaction.
Homogeneous equilibrium: A homogeneous equilibrium involved has an everything present in the same phase and same conditions, for example reactions where everything is a gas, or everything is present in the same solution.
Equilibrium concentration: If Kc and the initial concentration for a reaction and calculate for both equilibrium concentration, and using the (ICE) chart and equilibrium constant and derived changes in respective reactants and products.
Answer to Problem 15.12WE
The equilibrium concentration (Kc) value is given the hydrogen iodide chemical reaction is showed below.
Explanation of Solution
To find: Calculate the each
First we calculate the equilibrium table to determine the equilibrium concentrations of each species in terms of unknown (x) then solve for (x) and use it to calculate the equilibrium molar concentrations.
Let us consider the given equilibrium concentration values, to substitute (Kc) equation we get the equilibrium constant values.
The equilibrium concentration values are
The equal moles of H2 and I2 reacted in gas phase conditions to give 2 moles of HI, the balance equation are showed above. Then the depletion in the concentration of HI at equilibrium, the equilibrium concentration of H2 and I2 consider as (x), the calculation methods showed the table.
The HI molar concentration is derived given the equilibrium concentration (Kc) and its reaction.
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Chapter 15 Solutions
Chemistry Atoms First, Second Edition
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