Chapter 22, Problem 14STP

Interpretation Introduction

Interpretation:

The results in the shape of the energy graph needs to be discussed.

Concept introduction:

A chemical reaction is said to be endothermic if energy is added to the reactants to form products and it is exothermic if energy is released to form product. In case of endothermic reaction, the energy of reactant is less than that of product and in case of exothermic reaction it is greater than that of product.

Explanation of Solution

The given graph is as follows:

In the above reaction, the energy of compound A and B is less as compared to energy of compound C.

Now, A and B are reactants and C is product.

Since, energy increases as reactant changes to product thus, the given reaction is an endothermic reaction that is heat is added to the reactants to form product.

Conclusion

Therefore, from the shape of the energy graph it can be interpreted that it is an endothermic reaction.