Q. 7.68 - An Introduction to General, Organic, and Biological Chemistry

Question

a. What is measured by the heat of reaction?

b. In an endothermic reaction, is the energy of the products higher or lower than that of the reactants?

c. Draw an energy diagram for an endothermic reaction.

Step-by-Step Solution

Answer

(a) Reaction Enthalpy is measured by the heat of reaction.

(b) In an endothermic reaction is the energy of the product higher than the reactant.

(c) Graph is given below.

Part(a) Step 1: Given information

We have to find out the name of the quantity that is measured by the heat of the reaction.

Part(a) Step 2: Explanation

The chemical process is calculated as the difference in the enthalpy at constant pressure. Reaction enthalpy is the thermodynamic unit of measurement that determines the total amount of energy produced or released in a reaction.

Part(b) Step 1: Given information

We have to find out In endothermic reaction the  energy of the products higher or lower than that of the reactant.

Part(b) Step 2: Explanation

As we know that, In endothermic reaction, the energy of the products is higher than that of the reactants. Thus, heat is absorbed in endothermic reactions. 

Part(c) Step 1: Given information

We have been given,

As per question demand we draw a graph of endothermic reaction.

Part(c) Step 2: Explanation

Now, we draw a graph of endothermic reaction,