Chapter 12, Problem 124QP

(a)

Interpretation Introduction

Interpretation:

On increasing the concentration of the reactant, the average energy of collision increases or not is to be identified.

(b)

Interpretation Introduction

Interpretation:

On increasing the concentration of reactant, the collision frequency increases or not is to be identified.

(c)

Interpretation Introduction

Interpretation:

On increasing the concentration of reactant, the fraction of collisions with proper molecular orientation increases or not is to be identified.

Explanation:

With an increase in the concentration of reactant, the number of molecules colliding increases and the space between these molecules decreases. Hence, the possibility of molecules colliding increases, which leads to an increase in the collision frequency. However, there is no increase in the fraction of molecules with proper orientation because there is no increase in the kinetic energy or temperature.

(d)

Interpretation:

On increasing the concentration of reactant, the fraction of collision with sufficient energy increases or not is to be identified.

Explanation:

With an increase in the concentration of reactant, the number of molecules colliding increases and the space between these molecules decreases. Hence, the possibility of molecules colliding increases. As the collision increases, the energy of molecules increases and molecules start colliding with sufficient energy to overcome the activation energy.

(e)

Interpretation:

On increasing the concentration of reactant, the reaction rate increases or not is to be identified.

Explanation:

With an increase in the concentration of reactant, the number of molecules colliding increases and the space between these molecules decreases. Hence, the possibility of molecules colliding increases. As the collision increases, the energy of molecules increases and molecules start colliding with sufficient energy to overcome the activation energy and more reactants get converted into products. This leads to an increase in the rate of reaction.

(d)

Interpretation Introduction

Interpretation:

On increasing the concentration of reactant, the fraction of collision with sufficient energy increases or not is to be identified.

(e)

Interpretation Introduction

Interpretation:

On increasing the concentration of reactant, the reaction rate increases or not is to be identified.