Chapter 14, Problem 14.127CP

Interpretation Introduction

Interpretation:

In the following reaction of formation of carbon monoxide. 1.50 mole of CO₂and excess of solid are heated in a container having volume 20.0 L at 1100 K temperature and the equilibrium concentration of CO is 7.00M. Find out:

1. Equilibrium concentration of CO₂
2. The value of equilibrium constant at 1100 K temperature.

Concept introduction:

Equilibrium is the process in which temperature, pressure, concentration of reactant and product do not show any change with respect to time.
There are two types of equilibrium.

1. Physical equilibrium: In this, the physical state of the reactant and the product does not change when dynamic equilibrium occurred.
2. Chemical equilibrium: In this, the chemical composition of reactant and product does not change when dynamic equilibrium occurred. There are two types of reaction occurred in this.

(a) Reversible reactions: In this reaction, reaction can occur in two ways where reactant can convert to product as well as product can convert back to reactant.
(b) Irreversible reaction: In this reaction, reaction cannot occur in two ways where reactant can convert to product, but product cannot convert back to reactant.

Equilibrium constant $K_c$ is defined as the ratio of the concentrations of the products raised to the power of their stoichiometric coefficients and reactants raised to the power of their stoichiometric coefficients.
Reaction quotient Q is defined as the ratio at any point of the reaction of the concentration of the product raised to the power of their stoichiometric coefficients and reactant raised to the power of their stoichiometric coefficients.

$\begin{array}{l}aA+bB\to cC+dD\\ K_c=\frac{{\left[C\right]}^c{\left[D\right]}^d}{{\left[A\right]}^a{\left[B\right]}^b},equilibrium\\ Q=\frac{{\left[C\right]}^c{\left[D\right]}^d}{{\left[A\right]}^a{\left[B\right]}^b}\end{array}$

To calculate:

The value of equilibrium constant and equilibrium concentration of the reaction of formation of carbon monoxide.