Chapter 14, Problem 1SAQ

Interpretation Introduction

Introduction: The rate of change of concentration of products and reactants with respect to time is called the average rate of the reaction.

Answer to Problem 1SAQ

Correct answer: The average rate of the reaction is $0.014\text{ M/s}$.

There fore, option (d) is correct.

Explanation of Solution

Justify reasons for the correct statement:

The average rate of the reaction is written as follows:

$r=-\frac{\Delta \left[A\right]}{\Delta t}$

So,

$\begin{array}{c}r=-\frac{\Delta \left(1.00\text{ M}-0.86\text{ M}\right)}{10.0\text{ s}}\\ =0.014\text{ M/s}\end{array}$

Hence, option (d) is correct.

Conclusion

The average rate of the reaction between 0 and 10 seconds is $0.014\text{ M/s}$.