Practicing Success

Target Exam

CUET

Subject

Chemistry

Chapter

Physical: Chemical Kinetics

Question:

Collision frequency (Z) is correctly explained by which of the following statement? 

Options:

The number of collisions per hour per unit volume of the reaction mixture

The number of collisions per second per unit volume of the reaction mixture.

The number of collisions per minute per unit volume of the reaction mixture

None of these

Correct Answer:

The number of collisions per second per unit volume of the reaction mixture.

Explanation:

According to collision theory, the reactant molecules are assumed to be hard spheres and reaction is postulated to occur when molecules collide with each other. The number of collisions per second per unit volume of the reaction mixture is known as collision frequency (Z).