Chapter 16, Problem 57A

Interpretation Introduction

Interpretation:

The change of reaction rate for increase of temperature 10K needs to be determined.

Concept introduction:

Different factors like nature of reactants, concentration, surface area and temperature affects the rate of the reaction. Rate of the reaction increases with increasing temperature.

Answer to Problem 57A

The reaction rate is doubled when the temperature is raised by 10K.

Explanation of Solution

Consider the graph of the relative reaction rate and temperature of a reaction shown in the figure. The data marks are given as (Temperature, rate).

The given data points from the graph is as follows: (290K, 2), (310K, 8), (320K, 16) and (330K, 32). Temperature is raised by 10K. Therefore, it is clear that the reaction rate should double from 2 to 4.

Conclusion

Reaction rate of a chemical reaction is the change in concentration of a reactant or product per unit of time, expressed as mol/(L.s).