Chapter U5, Problem 9RE

Interpretation Introduction

Interpretation: The three ways that can increase the rate of reaction needs to be explained.

Concept introduction: Rate of a reaction is the change in amount of products or reactants per unit time.

  $\text{Rate}=\frac{-\text{Change}\text{in}\text{reactants}}{\text{Change}\text{in}\text{time}}$

Answer to Problem 9RE

Three ways that can increase the rate of reaction is as follows:

1. Increase the concentration of reactant
2. For endothermic reaction increase the temperature
3. Add catalyst to the reactant

Explanation of Solution

Three ways that can increase the rate of reaction is as follows:

Increase the concentration of reactant

For endothermic reaction increase the temperature

Add catalyst to the reactant

Catalyst is a substance that helps a reaction but is neither consumed nor for all time changed by reaction.

Conclusion

In most of the methods that rising rate of reaction involves a rise in number of collisions of molecules or a rise in the speeds of the collisions.