Chapter 19, Problem 19.122QP

Interpretation Introduction

Interpretation:

The rate of the given reactions from graphs has to be ranked.  The $\Delta H$ values for each reaction and which reaction is exothermic and which reaction is endothermic has to be determined.

Concept introduction:

Exothermic reaction: Exothermic reaction is said to be a chemical reaction in which energy will released in the form of heat.  In general this reaction has to be represented as follows.

$\text{Reactants }\to \text{ Products + Energy}$

Endothermic reaction: Endothermic reaction is said to be a chemical reaction in which energy will consumed in the form of heat.  In general this reaction has to be represented as follows.

$\text{Reactants + Energy}\to \text{ Products }$