Question

In a reversible chemical reaction, equilibrium is said to have been established when the :

• A. Concentration of reactants and products are equal
• B. Opposing reaction cease
• C. Speed of opposing reaction become equal
• D. Temperature of opposing reaction are equal

Answer 1

Answer: (C)

Speed of opposing reaction become equal

Rate of forward reaction $=$ Rate of backward reaction i.e., when $R_f=R_b$, equilibrium is established.