Question

The factors which will cause a shift in the chemical equilibrium are:

• A. A change in concentration of the reactant
• B. A change in the pressure of the reacting system
• C. A change in the temperature of the reacting system
• D. A change in the concentration of the catalyst

Answer 1

Answer: (A), (B), (C)

A change in the temperature of the reacting system

Chemical equilibrium is the state in which both reactants and products are present in concentrations which have no further tendency to change with time. The factors which have an influence on chemical equilibrium are:

(i) Concentration

(ii) Pressure

(iii) Temperature

The change in any of these factors causes a shift in chemical equilibrium. A change in the concentration of a catalyst does not cause a shift in the chemical equilibrium because the catalyst just helps the system to reach equilibrium faster.