Chapter 15.6, Problem 15.6.3SR

Interpretation Introduction

Interpretation:

Number of A and ${\text{A}}_{\text{2}}$ change when the volume of the container increases at constant temperature has to be explained.

Concept Introduction:

Equilibrium process: The any system at equilibrium subject to change in concentration, temperature, volume or pressure then the system readjusts itself to partly counteract the effect of the applied change and new equilibrium is formed.  This equilibrium explain to simple way, a system equilibrium is distributed the system will adjust itself in such a way that the effect of the change will be reduced.

Le Chatelier's Principle: A change in one of the variables that describe a system at equilibrium produces a shift in the position of the equilibrium that counteracts the effect of this change.  In other words the closed system is an increase in pressure; the equilibrium will shift towards the sides of the reaction with some moles of gas.  The decrease in pressure the equilibrium will shift towards the side of the reaction with high moles of gas.

The Law of Mass Action: The rate of chemical reaction is directly proportional to the products of activates and different concentration of the reactants.  Further this process explained the behaviors of solution in dynamic chemically equilibrium.