# Reaction Kinetics

## 10 questions

• 1. Multiple Choice
2 minutes
1 pt

For second order reaction, the initial concentration of reactant A is 0.24 M. If the rate constant is 8.1 x 10-2 M-1 s-1, what is the concentration of A after 29 seconds?

0.02 M

0.15 M

0.30 M

0.45 M

• 2. Multiple Choice
2 minutes
1 pt

Given the following balanced equation :

2NO(g) + Cl2(g) → 2NOCl(g)

If the rate of disappearance of Cl2 is 4.84 x 10-2 Ms-1, what is the rate of disappearance of NO?

1.45 x 10-2 Ms-1

2.42 x 10-2 Ms-1

3.67 x 10-2 Ms-1

9.68 x 10-2 Ms-1

• 3. Multiple Choice
2 minutes
1 pt

In the chemical reaction, the successful formation of products depends on the following factors EXCEPT:

The collisions between reacting molecules must be effective

The colliding molecules must approach each other in the right orientation

The energy of colliding molecules must be equal to or more than activation energy

A collision between molecules must produce sufficient energy to overcome the activation energy