Question

Which is a characteristic of a catalyst?

• A. It changes the equilibrium point
• B. It initiates the reaction
• C. It alters the rate of reaction
• D. It increases the average kinetic energy of the molecule

Answer 1

Answer: (C)

It alters the rate of reaction

Some properties of catalysts are:

1. A catalyst improves the speed of a reaction.

2. A catalyst takes part in the reaction even though it will not be consumed or used up in the course of the reaction.

3. A catalyst makes the reaction faster by giving an alternative path with lower activation energy.

4. In a reversible reaction, a catalyst accelerates the reaction in both directions. Therefore, the inclusion of a catalyst will not change the equilibrium point.

Thus the only the third statement is true.

The correct option is C.