A catalyst is more effective when it is in the finely divided state because:
Correct answer: B. This increases the surface area of the catalyst
- A. The valence electrons are easily available
- B. This increases the surface area of the catalyst
- C. It attains equilibrium quickly
- D. All of the above
Explanation
Option b is correct. A catalyst is more effective when it is in the finely divided state because it increases the surface area of the catalyst. This allows more reactant molecules to come into contact with the catalyst, increasing the likelihood of successful collisions and hence speeding up the reaction.
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About Chemical Equilibrium
Reversible reactions reach dynamic equilibrium when forward and reverse rates become equal, and Le Chatelier's principle predicts the effect of changing concentration, pressure or temperature. The chapter also covers solubility product, the common ion effect, buffer action and the conditions used in Haber's process, with equilibrium shifts distinguished from changes in the equilibrium constant.
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