Chapter 19.4, Problem 27R

To determine

To Explain: the two ways through which the rate of the chemical reaction is changed.

Answer to Problem 27R

The two ways in which state the rate of a chemical reaction is described is given as,

1. The presence of the catalyst is affecting the rate of reaction.
2. The reactants’ concentration is also affecting the reaction rate.

Explanation of Solution

Introduction:

The rate of a chemical reaction is the speed at which the reactants are changed into the product.

There are various ways through which the reaction rate can be changed. Some of them are explained below:

Due to the presence of catalyst, the reaction rate gets affected because catalyst is the substance which increases the reaction rate, but it remains unchanged in the reaction or it is not consumed. Similarly, the concentration of reactants also affects the reaction rate. If the concentration increases, then the reaction rate also increases.